138716850 has 24 divisors (see below), whose sum is σ = 344018160. Its totient is φ = 36991120.

The previous prime is 138716827. The next prime is 138716861. The reversal of 138716850 is 58617831.

It is a junction number, because it is equal to n+sod(n) for n = 138716799 and 138716808.

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, 462240 + ... + 462539.

It is an arithmetic number, because the mean of its divisors is an integer number (14334090).

Almost surely, 2^138716850 is an apocalyptic number.

138716850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138716850 is an abundant number, since it is smaller than the sum of its proper divisors (205301310).

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

138716850 is a wasteful number, since it uses less digits than its factorization.

138716850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924794 (or 924789 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 138716850 is about 11777.8117661983. The cubic root of 138716850 is about 517.6581700464.

The spelling of 138716850 in words is "one hundred thirty-eight million, seven hundred sixteen thousand, eight hundred fifty".