131432013 has 12 divisors (see below), whose sum is σ = 190258848. Its totient is φ = 87430920.

The previous prime is 131432009. The next prime is 131432023. The reversal of 131432013 is 310234131.

It is not a de Polignac number, because 131432013 - 2² = 131432009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131432023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11433 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (15854904).

Almost surely, 2^131432013 is an apocalyptic number.

It is an amenable number.

131432013 is a deficient number, since it is larger than the sum of its proper divisors (58826835).

131432013 is a wasteful number, since it uses less digits than its factorization.

131432013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31744 (or 31741 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131432013 is about 11464.3801838564. The cubic root of 131432013 is about 508.4329871692.

Adding to 131432013 its reverse (310234131), we get a palindrome (441666144).

The spelling of 131432013 in words is "one hundred thirty-one million, four hundred thirty-two thousand, thirteen".