131273725 has 12 divisors (see below), whose sum is σ = 177577920. Its totient is φ = 95471600.

The previous prime is 131273693. The next prime is 131273741. The reversal of 131273725 is 527372131.

It is not a de Polignac number, because 131273725 - 2⁵ = 131273693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238405 + ... + 238954.

It is an arithmetic number, because the mean of its divisors is an integer number (14798160).

Almost surely, 2^131273725 is an apocalyptic number.

It is an amenable number.

131273725 is a deficient number, since it is larger than the sum of its proper divisors (46304195).

131273725 is a wasteful number, since it uses less digits than its factorization.

131273725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477380 (or 477375 counting only the distinct ones).

The product of its digits is 8820, while the sum is 31.

The square root of 131273725 is about 11457.4746344908. The cubic root of 131273725 is about 508.2287975195.

The spelling of 131273725 in words is "one hundred thirty-one million, two hundred seventy-three thousand, seven hundred twenty-five".