157903512 has 32 divisors (see below), whose sum is σ = 425125680. Its totient is φ = 48585600.

The previous prime is 157903489. The next prime is 157903519. The reversal of 157903512 is 215309751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157903519) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 252739 + ... + 253362.

Almost surely, 2^157903512 is an apocalyptic number.

157903512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157903512 is an abundant number, since it is smaller than the sum of its proper divisors (267222168).

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

157903512 is a wasteful number, since it uses less digits than its factorization.

157903512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506123 (or 506119 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 157903512 is about 12565.9664172717. The cubic root of 157903512 is about 540.5019475450.

The spelling of 157903512 in words is "one hundred fifty-seven million, nine hundred three thousand, five hundred twelve".