131307243 has 16 divisors (see below), whose sum is σ = 178897920. Its totient is φ = 85647744.

The previous prime is 131307179. The next prime is 131307247. The reversal of 131307243 is 342703131.

It is not a de Polignac number, because 131307243 - 2⁶ = 131307179 is a prime.

It is a super-2 number, since 2×131307243² = 34483184128522098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131307247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24330 + ... + 29232.

It is an arithmetic number, because the mean of its divisors is an integer number (11181120).

Almost surely, 2^131307243 is an apocalyptic number.

131307243 is a deficient number, since it is larger than the sum of its proper divisors (47590677).

131307243 is a wasteful number, since it uses less digits than its factorization.

131307243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 131307243 is about 11458.9372543879. The cubic root of 131307243 is about 508.2720490364.

The spelling of 131307243 in words is "one hundred thirty-one million, three hundred seven thousand, two hundred forty-three".