131925123 has 24 divisors (see below), whose sum is σ = 208505856. Its totient is φ = 79714800.

The previous prime is 131925103. The next prime is 131925133. The reversal of 131925123 is 321529131.

It is not a de Polignac number, because 131925123 - 2⁸ = 131924867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131925103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34518 + ... + 38148.

It is an arithmetic number, because the mean of its divisors is an integer number (8687744).

Almost surely, 2^131925123 is an apocalyptic number.

131925123 is a deficient number, since it is larger than the sum of its proper divisors (76580733).

131925123 is a wasteful number, since it uses less digits than its factorization.

131925123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015 (or 4012 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 131925123 is about 11485.8662276730. The cubic root of 131925123 is about 509.0680442663.

The spelling of 131925123 in words is "one hundred thirty-one million, nine hundred twenty-five thousand, one hundred twenty-three".