138285112 has 32 divisors (see below), whose sum is σ = 298332000. Its totient is φ = 58863744.

The previous prime is 138285107. The next prime is 138285113. The reversal of 138285112 is 211582831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138285113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58 + ... + 16630.

It is an arithmetic number, because the mean of its divisors is an integer number (9322875).

Almost surely, 2^138285112 is an apocalyptic number.

It is an amenable number.

138285112 is an abundant number, since it is smaller than the sum of its proper divisors (160046888).

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

138285112 is a wasteful number, since it uses less digits than its factorization.

138285112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16735 (or 16731 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 138285112 is about 11759.4690356325. The cubic root of 138285112 is about 517.1205642000.

The spelling of 138285112 in words is "one hundred thirty-eight million, two hundred eighty-five thousand, one hundred twelve".