138851060 has 12 divisors (see below), whose sum is σ = 291587268. Its totient is φ = 55540416.

The previous prime is 138851059. The next prime is 138851093. The reversal of 138851060 is 60158831.

It can be written as a sum of positive squares in 2 ways, for example, as 105719524 + 33131536 = 10282^2 + 5756^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3471257 + ... + 3471296.

It is an arithmetic number, because the mean of its divisors is an integer number (24298939).

Almost surely, 2^138851060 is an apocalyptic number.

138851060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138851060 is an abundant number, since it is smaller than the sum of its proper divisors (152736208).

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

138851060 is a wasteful number, since it uses less digits than its factorization.

138851060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6942562 (or 6942560 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 138851060 is about 11783.5079666456. The cubic root of 138851060 is about 517.8250627950.

The spelling of 138851060 in words is "one hundred thirty-eight million, eight hundred fifty-one thousand, sixty".