157233490 has 16 divisors (see below), whose sum is σ = 283367448. Its totient is φ = 62816256.

The previous prime is 157233487. The next prime is 157233491. The reversal of 157233490 is 94332751.

157233490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 91412721 + 65820769 = 9561^2 + 8113^2 .

It is not an unprimeable number, because it can be changed into a prime (157233491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687 + ... + 17746.

Almost surely, 2^157233490 is an apocalyptic number.

157233490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157233490 is a deficient number, since it is larger than the sum of its proper divisors (126133958).

157233490 is a wasteful number, since it uses less digits than its factorization.

157233490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19293.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 157233490 is about 12539.2778898946. The cubic root of 157233490 is about 539.7363710882.

The spelling of 157233490 in words is "one hundred fifty-seven million, two hundred thirty-three thousand, four hundred ninety".