138085800 has 48 divisors (see below), whose sum is σ = 428067840. Its totient is φ = 36822720.

The previous prime is 138085799. The next prime is 138085853. The reversal of 138085800 is 8580831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114472 + ... + 115671.

It is an arithmetic number, because the mean of its divisors is an integer number (8918080).

Almost surely, 2^138085800 is an apocalyptic number.

138085800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138085800 is an abundant number, since it is smaller than the sum of its proper divisors (289982040).

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

138085800 is a wasteful number, since it uses less digits than its factorization.

138085800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230162 (or 230153 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 138085800 is about 11750.9914475333. The cubic root of 138085800 is about 516.8720007068.

The spelling of 138085800 in words is "one hundred thirty-eight million, eighty-five thousand, eight hundred".