130969409 has 2 divisors, whose sum is σ = 130969410. Its totient is φ = 130969408.

The previous prime is 130969403. The next prime is 130969441. The reversal of 130969409 is 904969031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102111025 + 28858384 = 10105^2 + 5372^2 .

It is a cyclic number.

It is not a de Polignac number, because 130969409 - 2⁴ = 130969393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130969403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65484704 + 65484705.

It is an arithmetic number, because the mean of its divisors is an integer number (65484705).

Almost surely, 2^130969409 is an apocalyptic number.

It is an amenable number.

130969409 is a deficient number, since it is larger than the sum of its proper divisors (1).

130969409 is an equidigital number, since it uses as much as digits as its factorization.

130969409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 130969409 is about 11444.1866901934. The cubic root of 130969409 is about 507.8357718768.

The spelling of 130969409 in words is "one hundred thirty million, nine hundred sixty-nine thousand, four hundred nine".