138057590 has 16 divisors (see below), whose sum is σ = 271095120. Its totient is φ = 50202720.

The previous prime is 138057551. The next prime is 138057617. The reversal of 138057590 is 95750831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627425 + ... + 627644.

It is an arithmetic number, because the mean of its divisors is an integer number (16943445).

Almost surely, 2^138057590 is an apocalyptic number.

138057590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138057590 is a deficient number, since it is larger than the sum of its proper divisors (133037530).

138057590 is a wasteful number, since it uses less digits than its factorization.

138057590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255087.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 138057590 is about 11749.7910619721. The cubic root of 138057590 is about 516.8368004855.

The spelling of 138057590 in words is "one hundred thirty-eight million, fifty-seven thousand, five hundred ninety".