131077469 has 2 divisors, whose sum is σ = 131077470. Its totient is φ = 131077468.

The previous prime is 131077433. The next prime is 131077489. The reversal of 131077469 is 964770131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101505625 + 29571844 = 10075^2 + 5438^2 .

It is a cyclic number.

It is not a de Polignac number, because 131077469 - 2⁸ = 131077213 is a prime.

It is a super-2 number, since 2×131077469² = 34362605758891922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131077489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65538734 + 65538735.

It is an arithmetic number, because the mean of its divisors is an integer number (65538735).

Almost surely, 2^131077469 is an apocalyptic number.

It is an amenable number.

131077469 is a deficient number, since it is larger than the sum of its proper divisors (1).

131077469 is an equidigital number, since it uses as much as digits as its factorization.

131077469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 131077469 is about 11448.9068910530. The cubic root of 131077469 is about 507.9754015514.

The spelling of 131077469 in words is "one hundred thirty-one million, seventy-seven thousand, four hundred sixty-nine".