130625217 has 20 divisors (see below), whose sum is σ = 198337876. Its totient is φ = 85652640.

The previous prime is 130625213. The next prime is 130625237. The reversal of 130625217 is 712526031.

It is a happy number.

130625217 is a `hidden beast` number, since 1 + 30 + 625 + 2 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49787136 + 80838081 = 7056^2 + 8991^2 .

It is not a de Polignac number, because 130625217 - 2² = 130625213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130625213) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8278 + ... + 18159.

Almost surely, 2^130625217 is an apocalyptic number.

It is an amenable number.

130625217 is a deficient number, since it is larger than the sum of its proper divisors (67712659).

130625217 is an equidigital number, since it uses as much as digits as its factorization.

130625217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26510 (or 26501 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 130625217 is about 11429.1389439450. The cubic root of 130625217 is about 507.3905117815.

The spelling of 130625217 in words is "one hundred thirty million, six hundred twenty-five thousand, two hundred seventeen".