138297038 has 8 divisors (see below), whose sum is σ = 226304280. Its totient is φ = 62862280.

The previous prime is 138297001. The next prime is 138297041. The reversal of 138297038 is 830792831.

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

It is a junction number, because it is equal to n+sod(n) for n = 138296986 and 138297004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143093 + ... + 3143136.

It is an arithmetic number, because the mean of its divisors is an integer number (28288035).

Almost surely, 2^138297038 is an apocalyptic number.

138297038 is a deficient number, since it is larger than the sum of its proper divisors (88007242).

138297038 is a wasteful number, since it uses less digits than its factorization.

138297038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286242.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 138297038 is about 11759.9761054179. The cubic root of 138297038 is about 517.1354296290.

The spelling of 138297038 in words is "one hundred thirty-eight million, two hundred ninety-seven thousand, thirty-eight".