131372643 has 8 divisors (see below), whose sum is σ = 175451728. Its totient is φ = 87437664.

The previous prime is 131372641. The next prime is 131372663. The reversal of 131372643 is 346273131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131372643 - 2¹ = 131372641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131372643.

It is not an unprimeable number, because it can be changed into a prime (131372641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33880 + ... + 37557.

It is an arithmetic number, because the mean of its divisors is an integer number (21931466).

Almost surely, 2^131372643 is an apocalyptic number.

131372643 is a deficient number, since it is larger than the sum of its proper divisors (44079085).

131372643 is an equidigital number, since it uses as much as digits as its factorization.

131372643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72053.

The product of its digits is 9072, while the sum is 30.

The square root of 131372643 is about 11461.7905669228. The cubic root of 131372643 is about 508.3564197942.

The spelling of 131372643 in words is "one hundred thirty-one million, three hundred seventy-two thousand, six hundred forty-three".