131629839 has 8 divisors (see below), whose sum is σ = 191461632. Its totient is φ = 79775640.

The previous prime is 131629819. The next prime is 131629847. The reversal of 131629839 is 938926131.

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

It is not a de Polignac number, because 131629839 - 2⁷ = 131629711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131629839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131629819) 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, 1994359 + ... + 1994424.

It is an arithmetic number, because the mean of its divisors is an integer number (23932704).

Almost surely, 2^131629839 is an apocalyptic number.

131629839 is a deficient number, since it is larger than the sum of its proper divisors (59831793).

131629839 is a wasteful number, since it uses less digits than its factorization.

131629839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988797.

The product of its digits is 69984, while the sum is 42.

The square root of 131629839 is about 11473.0047938629. The cubic root of 131629839 is about 508.6879500214.

The spelling of 131629839 in words is "one hundred thirty-one million, six hundred twenty-nine thousand, eight hundred thirty-nine".