138750158 has 16 divisors (see below), whose sum is σ = 222645024. Its totient is φ = 64619520.

The previous prime is 138750137. The next prime is 138750169. The reversal of 138750158 is 851057831.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17738 + ... + 24333.

It is an arithmetic number, because the mean of its divisors is an integer number (13915314).

Almost surely, 2^138750158 is an apocalyptic number.

138750158 is a deficient number, since it is larger than the sum of its proper divisors (83894866).

138750158 is a wasteful number, since it uses less digits than its factorization.

138750158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42187.

The product of its (nonzero) digits is 33600, while the sum is 38.

The square root of 138750158 is about 11779.2256961143. The cubic root of 138750158 is about 517.6995992323.

The spelling of 138750158 in words is "one hundred thirty-eight million, seven hundred fifty thousand, one hundred fifty-eight".