131229839 has 8 divisors (see below), whose sum is σ = 141501360. Its totient is φ = 120983616.

The previous prime is 131229811. The next prime is 131229859. The reversal of 131229839 is 938922131.

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

It is not a de Polignac number, because 131229839 - 2⁸ = 131229583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131229809) 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, 5252 + ... + 17030.

It is an arithmetic number, because the mean of its divisors is an integer number (17687670).

Almost surely, 2^131229839 is an apocalyptic number.

131229839 is a deficient number, since it is larger than the sum of its proper divisors (10271521).

131229839 is a wasteful number, since it uses less digits than its factorization.

131229839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12649.

The product of its digits is 23328, while the sum is 38.

The square root of 131229839 is about 11455.5593054202. The cubic root of 131229839 is about 508.1721560376.

The spelling of 131229839 in words is "one hundred thirty-one million, two hundred twenty-nine thousand, eight hundred thirty-nine".