131855396 has 6 divisors (see below), whose sum is σ = 230746950. Its totient is φ = 65927696.

The previous prime is 131855387. The next prime is 131855413. The reversal of 131855396 is 693558131.

131855396 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 71233600 + 60621796 = 8440^2 + 7786^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16481921 + ... + 16481928.

It is an arithmetic number, because the mean of its divisors is an integer number (38457825).

Almost surely, 2^131855396 is an apocalyptic number.

It is an amenable number.

131855396 is a deficient number, since it is larger than the sum of its proper divisors (98891554).

131855396 is a wasteful number, since it uses less digits than its factorization.

131855396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32963853 (or 32963851 counting only the distinct ones).

The product of its digits is 97200, while the sum is 41.

The square root of 131855396 is about 11482.8304872971. The cubic root of 131855396 is about 508.9783417589.

It can be divided in two parts, 13185 and 5396, that added together give a palindrome (18581).

The spelling of 131855396 in words is "one hundred thirty-one million, eight hundred fifty-five thousand, three hundred ninety-six".