151232031 has 12 divisors (see below), whose sum is σ = 218684752. Its totient is φ = 100711296.

The previous prime is 151232009. The next prime is 151232057. The reversal of 151232031 is 130232151.

151232031 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 151232031 - 2⁵ = 151231999 is a prime.

It is a super-2 number, since 2×151232031² = 45742254400769922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151231995 and 151232013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151230031) 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, 15 + ... + 17391.

Almost surely, 2^151232031 is an apocalyptic number.

151232031 is a deficient number, since it is larger than the sum of its proper divisors (67452721).

151232031 is a wasteful number, since it uses less digits than its factorization.

151232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18350 (or 18347 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 151232031 is about 12297.6433108137. The cubic root of 151232031 is about 532.7800180363.

Adding to 151232031 its reverse (130232151), we get a palindrome (281464182).

The spelling of 151232031 in words is "one hundred fifty-one million, two hundred thirty-two thousand, thirty-one".