232561903 has 4 divisors (see below), whose sum is σ = 265785040. Its totient is φ = 199338768.

The previous prime is 232561897. The next prime is 232561913. The reversal of 232561903 is 309165232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 232561903 - 2⁵ = 232561871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232561913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16611558 + ... + 16611571.

It is an arithmetic number, because the mean of its divisors is an integer number (66446260).

Almost surely, 2^232561903 is an apocalyptic number.

232561903 is a deficient number, since it is larger than the sum of its proper divisors (33223137).

232561903 is an equidigital number, since it uses as much as digits as its factorization.

232561903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33223136.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 232561903 is about 15249.9804262169. The cubic root of 232561903 is about 614.9590410513.

The spelling of 232561903 in words is "two hundred thirty-two million, five hundred sixty-one thousand, nine hundred three".