131918711 has 4 divisors (see below), whose sum is σ = 134986632. Its totient is φ = 128850792.

The previous prime is 131918693. The next prime is 131918719. The reversal of 131918711 is 117819131.

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 131918711 - 2²⁶ = 64809847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131918719) 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, 1533896 + ... + 1533981.

It is an arithmetic number, because the mean of its divisors is an integer number (33746658).

Almost surely, 2^131918711 is an apocalyptic number.

131918711 is a deficient number, since it is larger than the sum of its proper divisors (3067921).

131918711 is an equidigital number, since it uses as much as digits as its factorization.

131918711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3067920.

The product of its digits is 1512, while the sum is 32.

The square root of 131918711 is about 11485.5870986206. The cubic root of 131918711 is about 509.0597966656.

The spelling of 131918711 in words is "one hundred thirty-one million, nine hundred eighteen thousand, seven hundred eleven".