130997569 has 2 divisors, whose sum is σ = 130997570. Its totient is φ = 130997568.

The previous prime is 130997567. The next prime is 130997591. The reversal of 130997569 is 965799031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129686544 + 1311025 = 11388^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 130997569 - 2¹ = 130997567 is a prime.

It is a super-2 number, since 2×130997569² = 34320726167819522, which contains 22 as substring.

Together with 130997567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (130997567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65498784 + 65498785.

It is an arithmetic number, because the mean of its divisors is an integer number (65498785).

Almost surely, 2^130997569 is an apocalyptic number.

It is an amenable number.

130997569 is a deficient number, since it is larger than the sum of its proper divisors (1).

130997569 is an equidigital number, since it uses as much as digits as its factorization.

130997569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 49.

The square root of 130997569 is about 11445.4169430388. The cubic root of 130997569 is about 507.8721662038.

The spelling of 130997569 in words is "one hundred thirty million, nine hundred ninety-seven thousand, five hundred sixty-nine".