157312234 has 8 divisors (see below), whose sum is σ = 242345988. Its totient is φ = 76530240.

The previous prime is 157312151. The next prime is 157312261. The reversal of 157312234 is 432213751.

It can be written as a sum of positive squares in 2 ways, for example, as 155077209 + 2235025 = 12453^2 + 1495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062847 + ... + 1062994.

Almost surely, 2^157312234 is an apocalyptic number.

157312234 is a deficient number, since it is larger than the sum of its proper divisors (85033754).

157312234 is a wasteful number, since it uses less digits than its factorization.

157312234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125880.

The product of its digits is 5040, while the sum is 28.

The square root of 157312234 is about 12542.4173905990. The cubic root of 157312234 is about 539.8264577227.

Adding to 157312234 its reverse (432213751), we get a palindrome (589525985).

The spelling of 157312234 in words is "one hundred fifty-seven million, three hundred twelve thousand, two hundred thirty-four".