131348969 has 4 divisors (see below), whose sum is σ = 131373396. Its totient is φ = 131324544.

The previous prime is 131348963. The next prime is 131348983. The reversal of 131348969 is 969843131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78234025 + 53114944 = 8845^2 + 7288^2 .

It is a cyclic number.

It is not a de Polignac number, because 131348969 - 2⁸ = 131348713 is a prime.

It is a super-2 number, since 2×131348969² = 34505103314725922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131348963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224 + ... + 16209.

It is an arithmetic number, because the mean of its divisors is an integer number (32843349).

Almost surely, 2^131348969 is an apocalyptic number.

It is an amenable number.

131348969 is a deficient number, since it is larger than the sum of its proper divisors (24427).

131348969 is an equidigital number, since it uses as much as digits as its factorization.

131348969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24426.

The product of its digits is 139968, while the sum is 44.

The square root of 131348969 is about 11460.7577847191. The cubic root of 131348969 is about 508.3258818460.

The spelling of 131348969 in words is "one hundred thirty-one million, three hundred forty-eight thousand, nine hundred sixty-nine".