157512234 has 48 divisors (see below), whose sum is σ = 361359936. Its totient is φ = 45650880.

The previous prime is 157512217. The next prime is 157512247. The reversal of 157512234 is 432215751.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11982 + ... + 21414.

It is an arithmetic number, because the mean of its divisors is an integer number (7528332).

Almost surely, 2^157512234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157512234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180679968).

157512234 is an abundant number, since it is smaller than the sum of its proper divisors (203847702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157512234 is a wasteful number, since it uses less digits than its factorization.

157512234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9483 (or 9472 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 157512234 is about 12550.3878027733. The cubic root of 157512234 is about 540.0551315453.

Adding to 157512234 its reverse (432215751), we get a palindrome (589727985).

The spelling of 157512234 in words is "one hundred fifty-seven million, five hundred twelve thousand, two hundred thirty-four".