131273443 has 16 divisors (see below), whose sum is σ = 156957696. Its totient is φ = 107347680.

The previous prime is 131273399. The next prime is 131273479. The reversal of 131273443 is 344372131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131273443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131273143) 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, 80173 + ... + 81793.

It is an arithmetic number, because the mean of its divisors is an integer number (9809856).

Almost surely, 2^131273443 is an apocalyptic number.

131273443 is a deficient number, since it is larger than the sum of its proper divisors (25684253).

131273443 is a wasteful number, since it uses less digits than its factorization.

131273443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154.

The product of its digits is 6048, while the sum is 28.

The square root of 131273443 is about 11457.4623281074. The cubic root of 131273443 is about 508.2284335964.

The spelling of 131273443 in words is "one hundred thirty-one million, two hundred seventy-three thousand, four hundred forty-three".