130968661 has 2 divisors, whose sum is σ = 130968662. Its totient is φ = 130968660.

The previous prime is 130968599. The next prime is 130968667. The reversal of 130968661 is 166869031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130644900 + 323761 = 11430^2 + 569^2 .

It is a cyclic number.

It is not a de Polignac number, because 130968661 - 2⁷ = 130968533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130968667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65484330 + 65484331.

It is an arithmetic number, because the mean of its divisors is an integer number (65484331).

Almost surely, 2^130968661 is an apocalyptic number.

It is an amenable number.

130968661 is a deficient number, since it is larger than the sum of its proper divisors (1).

130968661 is an equidigital number, since it uses as much as digits as its factorization.

130968661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 130968661 is about 11444.1540097991. The cubic root of 130968661 is about 507.8348050813.

The spelling of 130968661 in words is "one hundred thirty million, nine hundred sixty-eight thousand, six hundred sixty-one".