151005231 has 12 divisors (see below), whose sum is σ = 234897208. Its totient is φ = 92926224.

The previous prime is 151005227. The next prime is 151005259. The reversal of 151005231 is 132500151.

It is not a de Polignac number, because 151005231 - 2² = 151005227 is a prime.

It is a super-2 number, since 2×151005231² = 45605159578726722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151005431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 645205 + ... + 645438.

Almost surely, 2^151005231 is an apocalyptic number.

151005231 is a deficient number, since it is larger than the sum of its proper divisors (83891977).

151005231 is a wasteful number, since it uses less digits than its factorization.

151005231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290662 (or 1290659 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 151005231 is about 12288.4185719726. The cubic root of 151005231 is about 532.5135511991.

Adding to 151005231 its reverse (132500151), we get a palindrome (283505382).

The spelling of 151005231 in words is "one hundred fifty-one million, five thousand, two hundred thirty-one".