130656889 has 6 divisors (see below), whose sum is σ = 143614730. Its totient is φ = 118778880.

The previous prime is 130656853. The next prime is 130656899. The reversal of 130656889 is 988656031.

It can be written as a sum of positive squares in only one way, i.e., 96924025 + 33732864 = 9845^2 + 5808^2 .

It is not a de Polignac number, because 130656889 - 2⁹ = 130656377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130656809) 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, 539784 + ... + 540025.

Almost surely, 2^130656889 is an apocalyptic number.

It is an amenable number.

130656889 is a deficient number, since it is larger than the sum of its proper divisors (12957841).

130656889 is a wasteful number, since it uses less digits than its factorization.

130656889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079831 (or 1079820 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 130656889 is about 11430.5244411619. The cubic root of 130656889 is about 507.4315165585.

The spelling of 130656889 in words is "one hundred thirty million, six hundred fifty-six thousand, eight hundred eighty-nine".