131942665139 has 8 divisors (see below), whose sum is σ = 135996587760. Its totient is φ = 127933537536.

The previous prime is 131942665133. The next prime is 131942665177. The reversal of 131942665139 is 931566249131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131942665139 - 2⁴ = 131942665123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131942665133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11192774 + ... + 11204555.

It is an arithmetic number, because the mean of its divisors is an integer number (16999573470).

Almost surely, 2^131942665139 is an apocalyptic number.

131942665139 is a deficient number, since it is larger than the sum of its proper divisors (4053922621).

131942665139 is a wasteful number, since it uses less digits than its factorization.

131942665139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22397509.

The product of its digits is 1049760, while the sum is 50.

The spelling of 131942665139 in words is "one hundred thirty-one billion, nine hundred forty-two million, six hundred sixty-five thousand, one hundred thirty-nine".