138875010 has 16 divisors (see below), whose sum is σ = 333300096. Its totient is φ = 37033328.

The previous prime is 138874991. The next prime is 138875017. The reversal of 138875010 is 10578831.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138875017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314554 + ... + 2314613.

It is an arithmetic number, because the mean of its divisors is an integer number (20831256).

Almost surely, 2^138875010 is an apocalyptic number.

138875010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138875010 is an abundant number, since it is smaller than the sum of its proper divisors (194425086).

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

138875010 is a wasteful number, since it uses less digits than its factorization.

138875010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4629177.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 138875010 is about 11784.5241736780. The cubic root of 138875010 is about 517.8548337771.

The spelling of 138875010 in words is "one hundred thirty-eight million, eight hundred seventy-five thousand, ten".