131587383 has 4 divisors (see below), whose sum is σ = 175449848. Its totient is φ = 87724920.

The previous prime is 131587373. The next prime is 131587399. The reversal of 131587383 is 383785131.

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

It is not a de Polignac number, because 131587383 - 2⁶ = 131587319 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 (131587303) 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, 21931228 + ... + 21931233.

It is an arithmetic number, because the mean of its divisors is an integer number (43862462).

Almost surely, 2^131587383 is an apocalyptic number.

131587383 is a deficient number, since it is larger than the sum of its proper divisors (43862465).

131587383 is an equidigital number, since it uses as much as digits as its factorization.

131587383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43862464.

The product of its digits is 60480, while the sum is 39.

The square root of 131587383 is about 11471.1543882907. The cubic root of 131587383 is about 508.6332532593.

The spelling of 131587383 in words is "one hundred thirty-one million, five hundred eighty-seven thousand, three hundred eighty-three".