138004937 has 8 divisors (see below), whose sum is σ = 158040000. Its totient is φ = 118049904.

The previous prime is 138004927. The next prime is 138004943. The reversal of 138004937 is 739400831.

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

It is not a de Polignac number, because 138004937 - 2⁴ = 138004921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138004897 and 138004906.

It is not an unprimeable number, because it can be changed into a prime (138004927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16262 + ... + 23247.

It is an arithmetic number, because the mean of its divisors is an integer number (19755000).

Almost surely, 2^138004937 is an apocalyptic number.

It is an amenable number.

138004937 is a deficient number, since it is larger than the sum of its proper divisors (20035063).

138004937 is an equidigital number, since it uses as much as digits as its factorization.

138004937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40015.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 138004937 is about 11747.5502552660. The cubic root of 138004937 is about 516.7710876470.

The spelling of 138004937 in words is "one hundred thirty-eight million, four thousand, nine hundred thirty-seven".