138549104 has 20 divisors (see below), whose sum is σ = 268784880. Its totient is φ = 69185280.

The previous prime is 138549097. The next prime is 138549107. The reversal of 138549104 is 401945831.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (138549107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8264 + ... + 18584.

It is an arithmetic number, because the mean of its divisors is an integer number (13439244).

Almost surely, 2^138549104 is an apocalyptic number.

It is an amenable number.

138549104 is a deficient number, since it is larger than the sum of its proper divisors (130235776).

138549104 is a wasteful number, since it uses less digits than its factorization.

138549104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11168 (or 11162 counting only the distinct ones).

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

The square root of 138549104 is about 11770.6883401099. The cubic root of 138549104 is about 517.4494232040.

The spelling of 138549104 in words is "one hundred thirty-eight million, five hundred forty-nine thousand, one hundred four".