131125199 has 16 divisors (see below), whose sum is σ = 142041600. Its totient is φ = 120591744.

The previous prime is 131125193. The next prime is 131125207. The reversal of 131125199 is 991521131.

It is not a de Polignac number, because 131125199 - 2⁸ = 131124943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131125193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239444 + ... + 239990.

It is an arithmetic number, because the mean of its divisors is an integer number (8877600).

Almost surely, 2^131125199 is an apocalyptic number.

131125199 is a deficient number, since it is larger than the sum of its proper divisors (10916401).

131125199 is a wasteful number, since it uses less digits than its factorization.

131125199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862.

The product of its digits is 2430, while the sum is 32.

The square root of 131125199 is about 11450.9911798062. The cubic root of 131125199 is about 508.0370514133.

The spelling of 131125199 in words is "one hundred thirty-one million, one hundred twenty-five thousand, one hundred ninety-nine".