130447656 has 48 divisors (see below), whose sum is σ = 357282900. Its totient is φ = 42991872.

The previous prime is 130447633. The next prime is 130447657. The reversal of 130447656 is 656744031.

It is a happy number.

130447656 is a `hidden beast` number, since 130 + 4 + 476 + 56 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 128459556 + 1988100 = 11334^2 + 1410^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 130447656.

It is not an unprimeable number, because it can be changed into a prime (130447657) 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, 3771 + ... + 16586.

Almost surely, 2^130447656 is an apocalyptic number.

It is an amenable number.

130447656 is an abundant number, since it is smaller than the sum of its proper divisors (226835244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130447656 is a wasteful number, since it uses less digits than its factorization.

130447656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20458 (or 20451 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 130447656 is about 11421.3683943738. The cubic root of 130447656 is about 507.1605061182.

The spelling of 130447656 in words is "one hundred thirty million, four hundred forty-seven thousand, six hundred fifty-six".