130418521 has 2 divisors, whose sum is σ = 130418522. Its totient is φ = 130418520.

The previous prime is 130418513. The next prime is 130418591. The reversal of 130418521 is 125814031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97298496 + 33120025 = 9864^2 + 5755^2 .

It is a cyclic number.

It is not a de Polignac number, because 130418521 - 2³ = 130418513 is a prime.

It is equal to p_7400518 and since 130418521 and 7400518 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (130418591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65209260 + 65209261.

It is an arithmetic number, because the mean of its divisors is an integer number (65209261).

Almost surely, 2^130418521 is an apocalyptic number.

It is an amenable number.

130418521 is a deficient number, since it is larger than the sum of its proper divisors (1).

130418521 is an equidigital number, since it uses as much as digits as its factorization.

130418521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 130418521 is about 11420.0928630200. The cubic root of 130418521 is about 507.1227458344.

The spelling of 130418521 in words is "one hundred thirty million, four hundred eighteen thousand, five hundred twenty-one".