131895387 has 12 divisors (see below), whose sum is σ = 205170784. Its totient is φ = 81166320.

The previous prime is 131895353. The next prime is 131895389. The reversal of 131895387 is 783598131.

131895387 is a `hidden beast` number, since 1 + 31 + 89 + 538 + 7 = 666.

It is not a de Polignac number, because 131895387 - 2¹⁴ = 131879003 is a prime.

It is a super-2 number, since 2×131895387² = 34792786223759538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131895389) 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, 563539 + ... + 563772.

Almost surely, 2^131895387 is an apocalyptic number.

131895387 is a deficient number, since it is larger than the sum of its proper divisors (73275397).

131895387 is a wasteful number, since it uses less digits than its factorization.

131895387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127330 (or 1127327 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 131895387 is about 11484.5716942340. The cubic root of 131895387 is about 509.0297933137.

The spelling of 131895387 in words is "one hundred thirty-one million, eight hundred ninety-five thousand, three hundred eighty-seven".