151656985 has 16 divisors (see below), whose sum is σ = 184571136. Its totient is φ = 119615488.

The previous prime is 151656977. The next prime is 151657013. The reversal of 151656985 is 589656151.

It is a cyclic number.

It is not a de Polignac number, because 151656985 - 2³ = 151656977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136944 + ... + 138046.

It is an arithmetic number, because the mean of its divisors is an integer number (11535696).

Almost surely, 2^151656985 is an apocalyptic number.

It is an amenable number.

151656985 is a deficient number, since it is larger than the sum of its proper divisors (32914151).

151656985 is a wasteful number, since it uses less digits than its factorization.

151656985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472.

The product of its digits is 324000, while the sum is 46.

The square root of 151656985 is about 12314.9090536634. The cubic root of 151656985 is about 533.2785792314.

It can be divided in two parts, 15 and 1656985, that multiplied together give a triangular number (24854775 = T₇₀₅₀).

The spelling of 151656985 in words is "one hundred fifty-one million, six hundred fifty-six thousand, nine hundred eighty-five".