131372473 has 4 divisors (see below), whose sum is σ = 134167680. Its totient is φ = 128577268.

The previous prime is 131372471. The next prime is 131372509. The reversal of 131372473 is 374273131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131372473 - 2¹ = 131372471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131372471) 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, 1397533 + ... + 1397626.

It is an arithmetic number, because the mean of its divisors is an integer number (33541920).

Almost surely, 2^131372473 is an apocalyptic number.

It is an amenable number.

131372473 is a deficient number, since it is larger than the sum of its proper divisors (2795207).

131372473 is an equidigital number, since it uses as much as digits as its factorization.

131372473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795206.

The product of its digits is 10584, while the sum is 31.

The square root of 131372473 is about 11461.7831509761. The cubic root of 131372473 is about 508.3562005181.

The spelling of 131372473 in words is "one hundred thirty-one million, three hundred seventy-two thousand, four hundred seventy-three".