232121525 has 12 divisors (see below), whose sum is σ = 294525792. Its totient is φ = 181377840.

The previous prime is 232121501. The next prime is 232121551. The reversal of 232121525 is 525121232.

It is not a de Polignac number, because 232121525 - 2⁸ = 232121269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 232121525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106889 + ... + 109038.

It is an arithmetic number, because the mean of its divisors is an integer number (24543816).

Almost surely, 2^232121525 is an apocalyptic number.

232121525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

232121525 is a deficient number, since it is larger than the sum of its proper divisors (62404267).

232121525 is a wasteful number, since it uses less digits than its factorization.

232121525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215980 (or 215975 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 232121525 is about 15235.5349430205. The cubic root of 232121525 is about 614.5706347148.

Adding to 232121525 its reverse (525121232), we get a palindrome (757242757).

The spelling of 232121525 in words is "two hundred thirty-two million, one hundred twenty-one thousand, five hundred twenty-five".