138845758 has 8 divisors (see below), whose sum is σ = 208360152. Its totient is φ = 69392376.

The previous prime is 138845747. The next prime is 138845767. The reversal of 138845758 is 857548831.

138845758 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 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, 9060 + ... + 18967.

It is an arithmetic number, because the mean of its divisors is an integer number (26045019).

Almost surely, 2^138845758 is an apocalyptic number.

138845758 is a deficient number, since it is larger than the sum of its proper divisors (69514394).

138845758 is a wasteful number, since it uses less digits than its factorization.

138845758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30506.

The product of its digits is 1075200, while the sum is 49.

The square root of 138845758 is about 11783.2829890485. The cubic root of 138845758 is about 517.8184716956.

The spelling of 138845758 in words is "one hundred thirty-eight million, eight hundred forty-five thousand, seven hundred fifty-eight".