131144013 has 48 divisors (see below), whose sum is σ = 254357376. Its totient is φ = 62881920.

The previous prime is 131144011. The next prime is 131144017. The reversal of 131144013 is 310441131.

It is not a de Polignac number, because 131144013 - 2¹ = 131144011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131144011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1731 + ... + 16287.

It is an arithmetic number, because the mean of its divisors is an integer number (5299112).

Almost surely, 2^131144013 is an apocalyptic number.

131144013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131144013 is a deficient number, since it is larger than the sum of its proper divisors (123213363).

131144013 is a wasteful number, since it uses less digits than its factorization.

131144013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14594 (or 14591 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 131144013 is about 11451.8126512793. The cubic root of 131144013 is about 508.0613481721.

Adding to 131144013 its reverse (310441131), we get a palindrome (441585144).

The spelling of 131144013 in words is "one hundred thirty-one million, one hundred forty-four thousand, thirteen".