138804148 has 24 divisors (see below), whose sum is σ = 281522304. Its totient is φ = 58648800.

The previous prime is 138804109. The next prime is 138804151. The reversal of 138804148 is 841408831.

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, 32923 + ... + 36898.

It is an arithmetic number, because the mean of its divisors is an integer number (11730096).

Almost surely, 2^138804148 is an apocalyptic number.

It is an amenable number.

138804148 is an abundant number, since it is smaller than the sum of its proper divisors (142718156).

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

138804148 is a wasteful number, since it uses less digits than its factorization.

138804148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69903 (or 69901 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 138804148 is about 11781.5172197812. The cubic root of 138804148 is about 517.7667390400.

The spelling of 138804148 in words is "one hundred thirty-eight million, eight hundred four thousand, one hundred forty-eight".