130102561 has 2 divisors, whose sum is σ = 130102562. Its totient is φ = 130102560.

The previous prime is 130102549. The next prime is 130102589. The reversal of 130102561 is 165201031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105698961 + 24403600 = 10281^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 130102561 - 2²⁵ = 96548129 is a prime.

It is not a weakly prime, because it can be changed into another prime (130102501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65051280 + 65051281.

It is an arithmetic number, because the mean of its divisors is an integer number (65051281).

Almost surely, 2^130102561 is an apocalyptic number.

It is an amenable number.

130102561 is a deficient number, since it is larger than the sum of its proper divisors (1).

130102561 is an equidigital number, since it uses as much as digits as its factorization.

130102561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 130102561 is about 11406.2509616438. The cubic root of 130102561 is about 506.7128856633.

Adding to 130102561 its reverse (165201031), we get a palindrome (295303592).

The spelling of 130102561 in words is "one hundred thirty million, one hundred two thousand, five hundred sixty-one".