138118960 has 40 divisors (see below), whose sum is σ = 367003296. Its totient is φ = 47354880.

The previous prime is 138118949. The next prime is 138118969. The reversal of 138118960 is 69811831.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×138118960² = 38153694222963200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (138118969) 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, 122761 + ... + 123880.

Almost surely, 2^138118960 is an apocalyptic number.

138118960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138118960 is an abundant number, since it is smaller than the sum of its proper divisors (228884336).

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

138118960 is a wasteful number, since it uses less digits than its factorization.

138118960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246661 (or 246655 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 138118960 is about 11752.4023076135. The cubic root of 138118960 is about 516.9133713710.

The spelling of 138118960 in words is "one hundred thirty-eight million, one hundred eighteen thousand, nine hundred sixty".