233157957 has 4 divisors (see below), whose sum is σ = 310877280. Its totient is φ = 155438636.

The previous prime is 233157937. The next prime is 233157961. The reversal of 233157957 is 759751332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 233157957 - 2⁶ = 233157893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233157917) 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, 38859657 + ... + 38859662.

It is an arithmetic number, because the mean of its divisors is an integer number (77719320).

Almost surely, 2^233157957 is an apocalyptic number.

It is an amenable number.

233157957 is a deficient number, since it is larger than the sum of its proper divisors (77719323).

233157957 is an equidigital number, since it uses as much as digits as its factorization.

233157957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77719322.

The product of its digits is 198450, while the sum is 42.

The square root of 233157957 is about 15269.5106994298. The cubic root of 233157957 is about 615.4839709487.

The spelling of 233157957 in words is "two hundred thirty-three million, one hundred fifty-seven thousand, nine hundred fifty-seven".