131925121 has 8 divisors (see below), whose sum is σ = 134460000. Its totient is φ = 129400320.

The previous prime is 131925103. The next prime is 131925133. The reversal of 131925121 is 121529131.

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

It is a cyclic number.

It is not a de Polignac number, because 131925121 - 2⁹ = 131924609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131926121) 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, 27201 + ... + 31681.

It is an arithmetic number, because the mean of its divisors is an integer number (16807500).

Almost surely, 2^131925121 is an apocalyptic number.

It is an amenable number.

131925121 is a deficient number, since it is larger than the sum of its proper divisors (2534879).

131925121 is an equidigital number, since it uses as much as digits as its factorization.

131925121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039.

The product of its digits is 540, while the sum is 25.

The square root of 131925121 is about 11485.8661406095. The cubic root of 131925121 is about 509.0680416938.

The spelling of 131925121 in words is "one hundred thirty-one million, nine hundred twenty-five thousand, one hundred twenty-one".