138850375 has 8 divisors (see below), whose sum is σ = 173285424. Its totient is φ = 111080200.

The previous prime is 138850367. The next prime is 138850391. The reversal of 138850375 is 573058831.

It is not a de Polignac number, because 138850375 - 2³ = 138850367 is a prime.

It is a Duffinian 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, 555277 + ... + 555526.

It is an arithmetic number, because the mean of its divisors is an integer number (21660678).

Almost surely, 2^138850375 is an apocalyptic number.

138850375 is a deficient number, since it is larger than the sum of its proper divisors (34435049).

138850375 is an equidigital number, since it uses as much as digits as its factorization.

138850375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110818 (or 1110808 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 138850375 is about 11783.4789005624. The cubic root of 138850375 is about 517.8242112573.

The spelling of 138850375 in words is "one hundred thirty-eight million, eight hundred fifty thousand, three hundred seventy-five".