131272433 has 4 divisors (see below), whose sum is σ = 131836068. Its totient is φ = 130708800.

The previous prime is 131272409. The next prime is 131272451. The reversal of 131272433 is 334272131.

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 17572864 + 113699569 = 4192^2 + 10663^2 .

It is a cyclic number.

It is not a de Polignac number, because 131272433 - 2⁶ = 131272369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131272033) 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, 281468 + ... + 281933.

It is an arithmetic number, because the mean of its divisors is an integer number (32959017).

Almost surely, 2^131272433 is an apocalyptic number.

It is an amenable number.

131272433 is a deficient number, since it is larger than the sum of its proper divisors (563635).

131272433 is an equidigital number, since it uses as much as digits as its factorization.

131272433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563634.

The product of its digits is 3024, while the sum is 26.

The square root of 131272433 is about 11457.4182519449. The cubic root of 131272433 is about 508.2271301796.

The spelling of 131272433 in words is "one hundred thirty-one million, two hundred seventy-two thousand, four hundred thirty-three".