131363389 has 4 divisors (see below), whose sum is σ = 131390140. Its totient is φ = 131336640.

The previous prime is 131363371. The next prime is 131363423. The reversal of 131363389 is 983363131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115025625 + 16337764 = 10725^2 + 4042^2 .

It is a cyclic number.

It is not a de Polignac number, because 131363389 - 2⁹ = 131362877 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 (131363989) 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, 3654 + ... + 16615.

It is an arithmetic number, because the mean of its divisors is an integer number (32847535).

Almost surely, 2^131363389 is an apocalyptic number.

It is an amenable number.

131363389 is a deficient number, since it is larger than the sum of its proper divisors (26751).

131363389 is an equidigital number, since it uses as much as digits as its factorization.

131363389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26750.

The product of its digits is 34992, while the sum is 37.

The square root of 131363389 is about 11461.3868707064. The cubic root of 131363389 is about 508.3444831619.

The spelling of 131363389 in words is "one hundred thirty-one million, three hundred sixty-three thousand, three hundred eighty-nine".