157158233 has 4 divisors (see below), whose sum is σ = 158199168. Its totient is φ = 156117300.

The previous prime is 157158227. The next prime is 157158257. The reversal of 157158233 is 332851751.

157158233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 157158233 - 2²² = 152963929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 157158193 and 157158202.

It is not an unprimeable number, because it can be changed into a prime (157158433) 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, 520241 + ... + 520542.

It is an arithmetic number, because the mean of its divisors is an integer number (39549792).

Almost surely, 2^157158233 is an apocalyptic number.

It is an amenable number.

157158233 is a deficient number, since it is larger than the sum of its proper divisors (1040935).

157158233 is a wasteful number, since it uses less digits than its factorization.

157158233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040934.

The product of its digits is 25200, while the sum is 35.

The square root of 157158233 is about 12536.2766800992. The cubic root of 157158233 is about 539.6502456233.

The spelling of 157158233 in words is "one hundred fifty-seven million, one hundred fifty-eight thousand, two hundred thirty-three".