131135918 has 8 divisors (see below), whose sum is σ = 202020312. Its totient is φ = 63795816.

The previous prime is 131135897. The next prime is 131135947. The reversal of 131135918 is 819531131.

It is a happy number.

131135918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885980 + ... + 886127.

It is an arithmetic number, because the mean of its divisors is an integer number (25252539).

Almost surely, 2^131135918 is an apocalyptic number.

131135918 is a deficient number, since it is larger than the sum of its proper divisors (70884394).

131135918 is a wasteful number, since it uses less digits than its factorization.

131135918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772146.

The product of its digits is 3240, while the sum is 32.

The square root of 131135918 is about 11451.4592083280. The cubic root of 131135918 is about 508.0508944194.

The spelling of 131135918 in words is "one hundred thirty-one million, one hundred thirty-five thousand, nine hundred eighteen".