151212656 has 40 divisors (see below), whose sum is σ = 340332384. Its totient is φ = 63740160.

The previous prime is 151212647. The next prime is 151212661. The reversal of 151212656 is 656212151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4235 + ... + 17898.

Almost surely, 2^151212656 is an apocalyptic number.

151212656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

151212656 is an abundant number, since it is smaller than the sum of its proper divisors (189119728).

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

151212656 is a wasteful number, since it uses less digits than its factorization.

151212656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22209 (or 22203 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 151212656 is about 12296.8555330214. The cubic root of 151212656 is about 532.7572648015.

The spelling of 151212656 in words is "one hundred fifty-one million, two hundred twelve thousand, six hundred fifty-six".