131839438 has 8 divisors (see below), whose sum is σ = 199981440. Its totient is φ = 65178960.

The previous prime is 131839429. The next prime is 131839439. The reversal of 131839438 is 834938131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131839438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131839439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370158 + ... + 370513.

It is an arithmetic number, because the mean of its divisors is an integer number (24997680).

Almost surely, 2^131839438 is an apocalyptic number.

131839438 is a deficient number, since it is larger than the sum of its proper divisors (68142002).

131839438 is an equidigital number, since it uses as much as digits as its factorization.

131839438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740762.

The product of its digits is 62208, while the sum is 40.

The square root of 131839438 is about 11482.1356027527. The cubic root of 131839438 is about 508.9578076377.

The spelling of 131839438 in words is "one hundred thirty-one million, eight hundred thirty-nine thousand, four hundred thirty-eight".