138739150 has 24 divisors (see below), whose sum is σ = 281515464. Its totient is φ = 50450400.

The previous prime is 138739147. The next prime is 138739157. The reversal of 138739150 is 51937831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138739157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125577 + ... + 126676.

It is an arithmetic number, because the mean of its divisors is an integer number (11729811).

Almost surely, 2^138739150 is an apocalyptic number.

138739150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138739150 is an abundant number, since it is smaller than the sum of its proper divisors (142776314).

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

138739150 is a wasteful number, since it uses less digits than its factorization.

138739150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252276 (or 252271 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 138739150 is about 11778.7584235351. The cubic root of 138739150 is about 517.6859079856.

The spelling of 138739150 in words is "one hundred thirty-eight million, seven hundred thirty-nine thousand, one hundred fifty".