187315464 has 32 divisors (see below), whose sum is σ = 535187520. Its totient is φ = 53518656.

The previous prime is 187315411. The next prime is 187315477. The reversal of 187315464 is 464513781.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557319 + ... + 557654.

It is an arithmetic number, because the mean of its divisors is an integer number (16724610).

Almost surely, 2^187315464 is an apocalyptic number.

187315464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

187315464 is an abundant number, since it is smaller than the sum of its proper divisors (347872056).

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

187315464 is a wasteful number, since it uses less digits than its factorization.

187315464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114989 (or 1114985 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 187315464 is about 13686.3239768756. The cubic root of 187315464 is about 572.1692898758.

The spelling of 187315464 in words is "one hundred eighty-seven million, three hundred fifteen thousand, four hundred sixty-four".