130887031 has 6 divisors (see below), whose sum is σ = 143867696. Its totient is φ = 118988100.

The previous prime is 130887023. The next prime is 130887077. The reversal of 130887031 is 130788031.

It is not a de Polignac number, because 130887031 - 2³ = 130887023 is a prime.

It is a super-2 number, since 2×130887031² = 34262829767989922, 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 = 130886984 and 130887002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130887331) 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, 540735 + ... + 540976.

Almost surely, 2^130887031 is an apocalyptic number.

130887031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130887031 is a deficient number, since it is larger than the sum of its proper divisors (12980665).

130887031 is a wasteful number, since it uses less digits than its factorization.

130887031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081733 (or 1081722 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 130887031 is about 11440.5870041707. The cubic root of 130887031 is about 507.7292755845.

The spelling of 130887031 in words is "one hundred thirty million, eight hundred eighty-seven thousand, thirty-one".