138852238 has 8 divisors (see below), whose sum is σ = 238032432. Its totient is φ = 59508096.

The previous prime is 138852227. The next prime is 138852251. The reversal of 138852238 is 832258831.

138852238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 138852238.

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, 4958995 + ... + 4959022.

It is an arithmetic number, because the mean of its divisors is an integer number (29754054).

Almost surely, 2^138852238 is an apocalyptic number.

138852238 is a deficient number, since it is larger than the sum of its proper divisors (99180194).

138852238 is an equidigital number, since it uses as much as digits as its factorization.

138852238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9918026.

The product of its digits is 92160, while the sum is 40.

The square root of 138852238 is about 11783.5579516545. The cubic root of 138852238 is about 517.8265271848.

The spelling of 138852238 in words is "one hundred thirty-eight million, eight hundred fifty-two thousand, two hundred thirty-eight".