131312199 has 16 divisors (see below), whose sum is σ = 188425440. Its totient is φ = 81039360.

The previous prime is 131312177. The next prime is 131312201. The reversal of 131312199 is 991213131.

It is a happy number.

It is not a de Polignac number, because 131312199 - 2¹³ = 131304007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312399) 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, 17994 + ... + 24215.

It is an arithmetic number, because the mean of its divisors is an integer number (11776590).

Almost surely, 2^131312199 is an apocalyptic number.

131312199 is a deficient number, since it is larger than the sum of its proper divisors (57113241).

131312199 is a wasteful number, since it uses less digits than its factorization.

131312199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42290.

The product of its digits is 1458, while the sum is 30.

The square root of 131312199 is about 11459.1535027680. The cubic root of 131312199 is about 508.2784436179.

The spelling of 131312199 in words is "one hundred thirty-one million, three hundred twelve thousand, one hundred ninety-nine".