138071180 has 24 divisors (see below), whose sum is σ = 312253872. Its totient is φ = 50980032.

The previous prime is 138071177. The next prime is 138071183. The reversal of 138071180 is 81170831.

It is an interprime number because it is at equal distance from previous prime (138071177) and next prime (138071183).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (138071183) 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, 265262 + ... + 265781.

It is an arithmetic number, because the mean of its divisors is an integer number (13010578).

Almost surely, 2^138071180 is an apocalyptic number.

138071180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138071180 is an abundant number, since it is smaller than the sum of its proper divisors (174182692).

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

138071180 is a wasteful number, since it uses less digits than its factorization.

138071180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531065 (or 531063 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 138071180 is about 11750.3693558969. The cubic root of 138071180 is about 516.8537585816.

The spelling of 138071180 in words is "one hundred thirty-eight million, seventy-one thousand, one hundred eighty".