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381401 is a prime number
BaseRepresentation
bin1011101000111011001
3201101011222
41131013121
544201101
612101425
73145646
oct1350731
9641158
10381401
11240609
12164875
131047a7
149cdcd
157801b
hex5d1d9

381401 has 2 divisors, whose sum is σ = 381402. Its totient is φ = 381400.

The previous prime is 381389. The next prime is 381413. The reversal of 381401 is 104183.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (381389) and next prime (381413).

It can be written as a sum of positive squares in only one way, i.e., 366025 + 15376 = 605^2 + 124^2 .

It is an emirp because it is prime and its reverse (104183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 381401 - 210 = 380377 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 381401.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381401.

It is not a weakly prime, because it can be changed into another prime (381461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190700 + 190701.

It is an arithmetic number, because the mean of its divisors is an integer number (190701).

2381401 is an apocalyptic number.

It is an amenable number.

381401 is a deficient number, since it is larger than the sum of its proper divisors (1).

381401 is an equidigital number, since it uses as much as digits as its factorization.

381401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 381401 is about 617.5767158823. The cubic root of 381401 is about 72.5204698442.

Adding to 381401 its reverse (104183), we get a palindrome (485584).

The spelling of 381401 in words is "three hundred eighty-one thousand, four hundred one".