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140381 is a prime number
BaseRepresentation
bin100010010001011101
321010120022
4202101131
513443011
63001525
71123163
oct422135
9233508
10140381
119651a
12692a5
134bb87
1439233
152b8db
hex2245d

140381 has 2 divisors, whose sum is σ = 140382. Its totient is φ = 140380.

The previous prime is 140363. The next prime is 140401. The reversal of 140381 is 183041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 3481 = 370^2 + 59^2 .

It is an emirp because it is prime and its reverse (183041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140381 - 26 = 140317 is a prime.

It is a super-2 number, since 2×1403812 = 39413650322, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140381.

It is not a weakly prime, because it can be changed into another prime (140321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70190 + 70191.

It is an arithmetic number, because the mean of its divisors is an integer number (70191).

2140381 is an apocalyptic number.

It is an amenable number.

140381 is a deficient number, since it is larger than the sum of its proper divisors (1).

140381 is an equidigital number, since it uses as much as digits as its factorization.

140381 is an evil number, because the sum of its binary digits is even.

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

The square root of 140381 is about 374.6745254217. The cubic root of 140381 is about 51.9720016929.

The spelling of 140381 in words is "one hundred forty thousand, three hundred eighty-one".