138016590 has 16 divisors (see below), whose sum is σ = 331239888. Its totient is φ = 36804416.

The previous prime is 138016561. The next prime is 138016609. The reversal of 138016590 is 95610831.

138016590 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2300247 + ... + 2300306.

It is an arithmetic number, because the mean of its divisors is an integer number (20702493).

Almost surely, 2^138016590 is an apocalyptic number.

138016590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138016590 is an abundant number, since it is smaller than the sum of its proper divisors (193223298).

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

138016590 is a wasteful number, since it uses less digits than its factorization.

138016590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600563.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 138016590 is about 11748.0462205424. The cubic root of 138016590 is about 516.7856324503.

The spelling of 138016590 in words is "one hundred thirty-eight million, sixteen thousand, five hundred ninety".