151632231 has 12 divisors (see below), whose sum is σ = 214769832. Its totient is φ = 95141248.

The previous prime is 151632223. The next prime is 151632259. The reversal of 151632231 is 132236151.

151632231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 151632231 - 2³ = 151632223 is a prime.

It is a super-2 number, since 2×151632231² = 45984666956074722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151632281) 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, 86580 + ... + 88313.

It is an arithmetic number, because the mean of its divisors is an integer number (17897486).

Almost surely, 2^151632231 is an apocalyptic number.

151632231 is a deficient number, since it is larger than the sum of its proper divisors (63137601).

151632231 is a wasteful number, since it uses less digits than its factorization.

151632231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174930 (or 174913 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 151632231 is about 12313.9039707154. The cubic root of 151632231 is about 533.2495631016.

Adding to 151632231 its reverse (132236151), we get a palindrome (283868382).

The spelling of 151632231 in words is "one hundred fifty-one million, six hundred thirty-two thousand, two hundred thirty-one".