151065531 has 6 divisors (see below), whose sum is σ = 218205780. Its totient is φ = 100710348.

The previous prime is 151065521. The next prime is 151065533. The reversal of 151065531 is 135560151.

151065531 is a `hidden beast` number, since 1 + 5 + 1 + 0 + 655 + 3 + 1 = 666.

It is not a de Polignac number, because 151065531 - 2²² = 146871227 is a prime.

It is a super-2 number, since 2×151065531² = 45641589312623922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151065495 and 151065504.

It is not an unprimeable number, because it can be changed into a prime (151065533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8392521 + ... + 8392538.

It is an arithmetic number, because the mean of its divisors is an integer number (36367630).

Almost surely, 2^151065531 is an apocalyptic number.

151065531 is a deficient number, since it is larger than the sum of its proper divisors (67140249).

151065531 is a wasteful number, since it uses less digits than its factorization.

151065531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16785065 (or 16785062 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 151065531 is about 12290.8718567887. The cubic root of 151065531 is about 532.5844235650.

The spelling of 151065531 in words is "one hundred fifty-one million, sixty-five thousand, five hundred thirty-one".