131808853 has 4 divisors (see below), whose sum is σ = 143791488. Its totient is φ = 119826220.

The previous prime is 131808847. The next prime is 131808881. The reversal of 131808853 is 358808131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358808131 = 11 ⋅32618921.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131808853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131808253) 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, 5991301 + ... + 5991322.

It is an arithmetic number, because the mean of its divisors is an integer number (35947872).

Almost surely, 2^131808853 is an apocalyptic number.

It is an amenable number.

131808853 is a deficient number, since it is larger than the sum of its proper divisors (11982635).

131808853 is a wasteful number, since it uses less digits than its factorization.

131808853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982634.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 131808853 is about 11480.8036739594. The cubic root of 131808853 is about 508.9184474415.

The spelling of 131808853 in words is "one hundred thirty-one million, eight hundred eight thousand, eight hundred fifty-three".