151566251 has 16 divisors (see below), whose sum is σ = 161201664. Its totient is φ = 142215744.

The previous prime is 151566241. The next prime is 151566253. The reversal of 151566251 is 152665151.

151566251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 151566251 - 2²² = 147371947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151566253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324320 + ... + 324786.

It is an arithmetic number, because the mean of its divisors is an integer number (10075104).

Almost surely, 2^151566251 is an apocalyptic number.

151566251 is a deficient number, since it is larger than the sum of its proper divisors (9635413).

151566251 is a wasteful number, since it uses less digits than its factorization.

151566251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730.

The product of its digits is 9000, while the sum is 32.

The square root of 151566251 is about 12311.2245938412. The cubic root of 151566251 is about 533.1722072731.

The spelling of 151566251 in words is "one hundred fifty-one million, five hundred sixty-six thousand, two hundred fifty-one".