131191412 has 24 divisors (see below), whose sum is σ = 250979232. Its totient is φ = 59508000.

The previous prime is 131191387. The next prime is 131191421. The reversal of 131191412 is 214191131.

It is a super-2 number, since 2×131191412² = 34422373165107488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20162 + ... + 25862.

It is an arithmetic number, because the mean of its divisors is an integer number (10457468).

Almost surely, 2^131191412 is an apocalyptic number.

It is an amenable number.

131191412 is a deficient number, since it is larger than the sum of its proper divisors (119787820).

131191412 is a wasteful number, since it uses less digits than its factorization.

131191412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6239 (or 6237 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

The square root of 131191412 is about 11453.8819620249. The cubic root of 131191412 is about 508.1225498455.

The spelling of 131191412 in words is "one hundred thirty-one million, one hundred ninety-one thousand, four hundred twelve".