151978527 has 6 divisors (see below), whose sum is σ = 219524552. Its totient is φ = 101319012.

The previous prime is 151978501. The next prime is 151978529. The reversal of 151978527 is 725879151.

151978527 is a `hidden beast` number, since 1 + 51 + 9 + 78 + 527 = 666.

It is not a de Polignac number, because 151978527 - 2⁸ = 151978271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151978529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8443243 + ... + 8443260.

Almost surely, 2^151978527 is an apocalyptic number.

151978527 is a deficient number, since it is larger than the sum of its proper divisors (67546025).

151978527 is a wasteful number, since it uses less digits than its factorization.

151978527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16886509 (or 16886506 counting only the distinct ones).

The product of its digits is 176400, while the sum is 45.

The square root of 151978527 is about 12327.9571300358. The cubic root of 151978527 is about 533.6551976010.

The spelling of 151978527 in words is "one hundred fifty-one million, nine hundred seventy-eight thousand, five hundred twenty-seven".