138725358 has 32 divisors (see below), whose sum is σ = 286623360. Its totient is φ = 44727840.

The previous prime is 138725347. The next prime is 138725371. The reversal of 138725358 is 853527831.

138725358 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37993 + ... + 41483.

It is an arithmetic number, because the mean of its divisors is an integer number (8956980).

Almost surely, 2^138725358 is an apocalyptic number.

138725358 is an abundant number, since it is smaller than the sum of its proper divisors (147898002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138725358 is a wasteful number, since it uses less digits than its factorization.

138725358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712.

The product of its digits is 201600, while the sum is 42.

The square root of 138725358 is about 11778.1729482972. The cubic root of 138725358 is about 517.6687531050.

The spelling of 138725358 in words is "one hundred thirty-eight million, seven hundred twenty-five thousand, three hundred fifty-eight".