138183560 has 32 divisors (see below), whose sum is σ = 311351040. Its totient is φ = 55195584.

The previous prime is 138183557. The next prime is 138183569. The reversal of 138183560 is 65381831.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 138183560.

It is not an unprimeable number, because it can be changed into a prime (138183569) 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, 32519 + ... + 36521.

It is an arithmetic number, because the mean of its divisors is an integer number (9729720).

Almost surely, 2^138183560 is an apocalyptic number.

138183560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138183560 is an abundant number, since it is smaller than the sum of its proper divisors (173167480).

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

138183560 is a wasteful number, since it uses less digits than its factorization.

138183560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4877 (or 4873 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 138183560 is about 11755.1503605866. The cubic root of 138183560 is about 516.9939478033.

The spelling of 138183560 in words is "one hundred thirty-eight million, one hundred eighty-three thousand, five hundred sixty".