138750170 has 32 divisors (see below), whose sum is σ = 269489808. Its totient is φ = 51130368.

The previous prime is 138750169. The next prime is 138750193. The reversal of 138750170 is 71057831.

It can be written as a sum of positive squares in 8 ways, for example, as 47375689 + 91374481 = 6883^2 + 9559^2 .

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 15 ways as a sum of consecutive naturals, for example, 113402 + ... + 114618.

Almost surely, 2^138750170 is an apocalyptic number.

138750170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138750170 is a deficient number, since it is larger than the sum of its proper divisors (130739638).

138750170 is a wasteful number, since it uses less digits than its factorization.

138750170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 138750170 is about 11779.2262054857. The cubic root of 138750170 is about 517.6996141569.

The spelling of 138750170 in words is "one hundred thirty-eight million, seven hundred fifty thousand, one hundred seventy".