131395318 has 8 divisors (see below), whose sum is σ = 197961912. Its totient is φ = 65408016.

The previous prime is 131395309. The next prime is 131395331. The reversal of 131395318 is 813593131.

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

It is a super-3 number, since 3×131395318³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144255 + ... + 145162.

It is an arithmetic number, because the mean of its divisors is an integer number (24745239).

Almost surely, 2^131395318 is an apocalyptic number.

131395318 is a deficient number, since it is larger than the sum of its proper divisors (66566594).

131395318 is a wasteful number, since it uses less digits than its factorization.

131395318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289646.

The product of its digits is 9720, while the sum is 34.

The square root of 131395318 is about 11462.7796803393. The cubic root of 131395318 is about 508.3856656565.

The spelling of 131395318 in words is "one hundred thirty-one million, three hundred ninety-five thousand, three hundred eighteen".