131842739 has 16 divisors (see below), whose sum is σ = 158080512. Its totient is φ = 107509248.

The previous prime is 131842709. The next prime is 131842759. The reversal of 131842739 is 937248131.

It is not a de Polignac number, because 131842739 - 2⁸ = 131842483 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131842709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28952 + ... + 33194.

It is an arithmetic number, because the mean of its divisors is an integer number (9880032).

Almost surely, 2^131842739 is an apocalyptic number.

131842739 is a deficient number, since it is larger than the sum of its proper divisors (26237773).

131842739 is a wasteful number, since it uses less digits than its factorization.

131842739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466.

The product of its digits is 36288, while the sum is 38.

The square root of 131842739 is about 11482.2793468893. The cubic root of 131842739 is about 508.9620553694.

The spelling of 131842739 in words is "one hundred thirty-one million, eight hundred forty-two thousand, seven hundred thirty-nine".