130897691 has 2 divisors, whose sum is σ = 130897692. Its totient is φ = 130897690.

The previous prime is 130897667. The next prime is 130897693. The reversal of 130897691 is 196798031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130897691 - 2²² = 126703387 is a prime.

Together with 130897693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130897693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65448845 + 65448846.

It is an arithmetic number, because the mean of its divisors is an integer number (65448846).

Almost surely, 2^130897691 is an apocalyptic number.

130897691 is the 6116-th centered heptagonal number.

130897691 is a deficient number, since it is larger than the sum of its proper divisors (1).

130897691 is an equidigital number, since it uses as much as digits as its factorization.

130897691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 130897691 is about 11441.0528798708. The cubic root of 130897691 is about 507.7430590920.

The spelling of 130897691 in words is "one hundred thirty million, eight hundred ninety-seven thousand, six hundred ninety-one".