131412491 has 4 divisors (see below), whose sum is σ = 150185712. Its totient is φ = 112639272.

The previous prime is 131412481. The next prime is 131412497. The reversal of 131412491 is 194214131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131412491 - 2²² = 127218187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131412491.

It is not an unprimeable number, because it can be changed into a prime (131412497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9386600 + ... + 9386613.

It is an arithmetic number, because the mean of its divisors is an integer number (37546428).

Almost surely, 2^131412491 is an apocalyptic number.

131412491 is a deficient number, since it is larger than the sum of its proper divisors (18773221).

131412491 is an equidigital number, since it uses as much as digits as its factorization.

131412491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18773220.

The product of its digits is 864, while the sum is 26.

The square root of 131412491 is about 11463.5287324628. The cubic root of 131412491 is about 508.4078128858.

The spelling of 131412491 in words is "one hundred thirty-one million, four hundred twelve thousand, four hundred ninety-one".