131097243 has 16 divisors (see below), whose sum is σ = 177408000. Its totient is φ = 86101920.

The previous prime is 131097227. The next prime is 131097257. The reversal of 131097243 is 342790131.

It is not a de Polignac number, because 131097243 - 2⁴ = 131097227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131097243.

It is not an unprimeable number, because it can be changed into a prime (131097223) 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, 61408 + ... + 63506.

It is an arithmetic number, because the mean of its divisors is an integer number (11088000).

Almost surely, 2^131097243 is an apocalyptic number.

131097243 is a deficient number, since it is larger than the sum of its proper divisors (46310757).

131097243 is a wasteful number, since it uses less digits than its factorization.

131097243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 131097243 is about 11449.7704343799. The cubic root of 131097243 is about 508.0009442085. Note that the first 3 decimals are identical.

The spelling of 131097243 in words is "one hundred thirty-one million, ninety-seven thousand, two hundred forty-three".