138002952 has 32 divisors (see below), whose sum is σ = 346128480. Its totient is φ = 45851520.

The previous prime is 138002939. The next prime is 138002971. The reversal of 138002952 is 259200831.

It is a happy 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, 1674 + ... + 16697.

It is an arithmetic number, because the mean of its divisors is an integer number (10816515).

Almost surely, 2^138002952 is an apocalyptic number.

138002952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138002952 is an abundant number, since it is smaller than the sum of its proper divisors (208125528).

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

138002952 is a wasteful number, since it uses less digits than its factorization.

138002952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18693 (or 18689 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 138002952 is about 11747.4657692627. The cubic root of 138002952 is about 516.7686099687.

The spelling of 138002952 in words is "one hundred thirty-eight million, two thousand, nine hundred fifty-two".