131693039 has 4 divisors (see below), whose sum is σ = 131824056. Its totient is φ = 131562024.

The previous prime is 131693021. The next prime is 131693057. The reversal of 131693039 is 930396131.

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

It is an interprime number because it is at equal distance from previous prime (131693021) and next prime (131693057).

It is a cyclic number.

It is not a de Polignac number, because 131693039 - 2⁸ = 131692783 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 (131693059) 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, 63989 + ... + 66014.

It is an arithmetic number, because the mean of its divisors is an integer number (32956014).

Almost surely, 2^131693039 is an apocalyptic number.

131693039 is a deficient number, since it is larger than the sum of its proper divisors (131017).

131693039 is a wasteful number, since it uses less digits than its factorization.

131693039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131016.

The product of its (nonzero) digits is 13122, while the sum is 35.

The square root of 131693039 is about 11475.7587548711. The cubic root of 131693039 is about 508.7693498386.

The spelling of 131693039 in words is "one hundred thirty-one million, six hundred ninety-three thousand, thirty-nine".