157284872 has 8 divisors (see below), whose sum is σ = 294909150. Its totient is φ = 78642432.

The previous prime is 157284863. The next prime is 157284887. The reversal of 157284872 is 278482751.

It can be written as a sum of positive squares in only one way, i.e., 151930276 + 5354596 = 12326^2 + 2314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9830297 + ... + 9830312.

Almost surely, 2^157284872 is an apocalyptic number.

It is an amenable number.

157284872 is a deficient number, since it is larger than the sum of its proper divisors (137624278).

157284872 is a wasteful number, since it uses less digits than its factorization.

157284872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19660615 (or 19660611 counting only the distinct ones).

The product of its digits is 250880, while the sum is 44.

The square root of 157284872 is about 12541.3265646023. The cubic root of 157284872 is about 539.7951577879.

The spelling of 157284872 in words is "one hundred fifty-seven million, two hundred eighty-four thousand, eight hundred seventy-two".