138160680 has 64 divisors (see below), whose sum is σ = 473696640. Its totient is φ = 31579392.

The previous prime is 138160679. The next prime is 138160681. The reversal of 138160680 is 86061831.

It is an interprime number because it is at equal distance from previous prime (138160679) and next prime (138160681).

It is not an unprimeable number, because it can be changed into a prime (138160681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81399 + ... + 83078.

It is an arithmetic number, because the mean of its divisors is an integer number (7401510).

Almost surely, 2^138160680 is an apocalyptic number.

138160680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138160680 is an abundant number, since it is smaller than the sum of its proper divisors (335535960).

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

138160680 is a wasteful number, since it uses less digits than its factorization.

138160680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164498 (or 164494 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 138160680 is about 11754.1771298547. The cubic root of 138160680 is about 516.9654121501.

The spelling of 138160680 in words is "one hundred thirty-eight million, one hundred sixty thousand, six hundred eighty".