131766513 has 8 divisors (see below), whose sum is σ = 175742400. Its totient is φ = 87817488.

The previous prime is 131766493. The next prime is 131766553. The reversal of 131766513 is 315667131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131766513 - 2⁹ = 131766001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131766553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13023 + ... + 20811.

It is an arithmetic number, because the mean of its divisors is an integer number (21967800).

Almost surely, 2^131766513 is an apocalyptic number.

It is an amenable number.

131766513 is a deficient number, since it is larger than the sum of its proper divisors (43975887).

131766513 is an equidigital number, since it uses as much as digits as its factorization.

131766513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13431.

The product of its digits is 11340, while the sum is 33.

The square root of 131766513 is about 11478.9595782893. The cubic root of 131766513 is about 508.8639495475.

The spelling of 131766513 in words is "one hundred thirty-one million, seven hundred sixty-six thousand, five hundred thirteen".