131672923 has 4 divisors (see below), whose sum is σ = 134735128. Its totient is φ = 128610720.

The previous prime is 131672887. The next prime is 131672929. The reversal of 131672923 is 329276131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329276131 = 241 ⋅1366291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131672923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131672929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1531038 + ... + 1531123.

It is an arithmetic number, because the mean of its divisors is an integer number (33683782).

Almost surely, 2^131672923 is an apocalyptic number.

131672923 is a deficient number, since it is larger than the sum of its proper divisors (3062205).

131672923 is an equidigital number, since it uses as much as digits as its factorization.

131672923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062204.

The product of its digits is 13608, while the sum is 34.

The square root of 131672923 is about 11474.8822651912. The cubic root of 131672923 is about 508.7434438240.

The spelling of 131672923 in words is "one hundred thirty-one million, six hundred seventy-two thousand, nine hundred twenty-three".