131499461 has 4 divisors (see below), whose sum is σ = 134557632. Its totient is φ = 128441292.

The previous prime is 131499457. The next prime is 131499479. The reversal of 131499461 is 164994131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131499461 - 2² = 131499457 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 (131499451) 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, 1529021 + ... + 1529106.

It is an arithmetic number, because the mean of its divisors is an integer number (33639408).

Almost surely, 2^131499461 is an apocalyptic number.

It is an amenable number.

131499461 is a deficient number, since it is larger than the sum of its proper divisors (3058171).

131499461 is an equidigital number, since it uses as much as digits as its factorization.

131499461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058170.

The product of its digits is 23328, while the sum is 38.

The square root of 131499461 is about 11467.3214396388. The cubic root of 131499461 is about 508.5199444812.

The spelling of 131499461 in words is "one hundred thirty-one million, four hundred ninety-nine thousand, four hundred sixty-one".