131401674469 has 6 divisors (see below), whose sum is σ = 142287020466. Its totient is φ = 121293853200.

The previous prime is 131401674433. The next prime is 131401674487. The reversal of 131401674469 is 964476104131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5332650625 + 126069023844 = 73025^2 + 355062^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131401674469 is a prime.

It is a super-2 number, since 2×131401674469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131401674499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388762182 + ... + 388762519.

It is an arithmetic number, because the mean of its divisors is an integer number (23714503411).

Almost surely, 2^131401674469 is an apocalyptic number.

It is an amenable number.

131401674469 is a deficient number, since it is larger than the sum of its proper divisors (10885345997).

131401674469 is an equidigital number, since it uses as much as digits as its factorization.

131401674469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777524727 (or 777524714 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 131401674469 in words is "one hundred thirty-one billion, four hundred one million, six hundred seventy-four thousand, four hundred sixty-nine".