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152401 = 257593
BaseRepresentation
bin100101001101010001
321202001111
4211031101
514334101
63133321
71203214
oct451521
9252044
10152401
11a4557
1274241
13544a2
143d77b
1530251
hex25351

152401 has 4 divisors (see below), whose sum is σ = 153252. Its totient is φ = 151552.

The previous prime is 152393. The next prime is 152407. The reversal of 152401 is 104251.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 129600 + 22801 = 360^2 + 151^2 .

It is a cyclic number.

It is not a de Polignac number, because 152401 - 23 = 152393 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (38313).

2152401 is an apocalyptic number.

It is an amenable number.

152401 is a deficient number, since it is larger than the sum of its proper divisors (851).

152401 is an equidigital number, since it uses as much as digits as its factorization.

152401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 152401 is about 390.3857067056. The cubic root of 152401 is about 53.4149228634.

Adding to 152401 its reverse (104251), we get a palindrome (256652).

The spelling of 152401 in words is "one hundred fifty-two thousand, four hundred one".

Divisors: 1 257 593 152401