138152580 has 24 divisors (see below), whose sum is σ = 386827392. Its totient is φ = 36840672.

The previous prime is 138152579. The next prime is 138152627. The reversal of 138152580 is 85251831.

It is a happy number.

It is a super-2 number, since 2×138152580² = 38172270721312800, which contains 22 as substring.

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, 1151212 + ... + 1151331.

It is an arithmetic number, because the mean of its divisors is an integer number (16117808).

Almost surely, 2^138152580 is an apocalyptic number.

138152580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138152580 is an abundant number, since it is smaller than the sum of its proper divisors (248674812).

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

138152580 is a wasteful number, since it uses less digits than its factorization.

138152580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302555 (or 2302553 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 138152580 is about 11753.8325664440. The cubic root of 138152580 is about 516.9553091751.

The spelling of 138152580 in words is "one hundred thirty-eight million, one hundred fifty-two thousand, five hundred eighty".