131411999 has 16 divisors (see below), whose sum is σ = 142348800. Its totient is φ = 120911616.

The previous prime is 131411981. The next prime is 131412019. The reversal of 131411999 is 999114131.

It is a cyclic number.

It is not a de Polignac number, because 131411999 - 2⁸ = 131411743 is a prime.

It is a super-2 number, since 2×131411999² = 34538226962352002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131411909) 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, 194927 + ... + 195599.

It is an arithmetic number, because the mean of its divisors is an integer number (8896800).

Almost surely, 2^131411999 is an apocalyptic number.

131411999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131411999 is a deficient number, since it is larger than the sum of its proper divisors (10936801).

131411999 is a wasteful number, since it uses less digits than its factorization.

131411999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its digits is 8748, while the sum is 38.

The square root of 131411999 is about 11463.5072730818. The cubic root of 131411999 is about 508.4071784028.

The spelling of 131411999 in words is "one hundred thirty-one million, four hundred eleven thousand, nine hundred ninety-nine".