138094080 has 80 divisors (see below), whose sum is σ = 441494064. Its totient is φ = 36823040.

The previous prime is 138094069. The next prime is 138094081. The reversal of 138094080 is 80490831.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138094081) 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, 1311 + ... + 16670.

Almost surely, 2^138094080 is an apocalyptic number.

138094080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138094080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220747032).

138094080 is an abundant number, since it is smaller than the sum of its proper divisors (303399984).

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

138094080 is an equidigital number, since it uses as much as digits as its factorization.

138094080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18007 (or 17991 counting only the distinct ones).

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

The square root of 138094080 is about 11751.3437529501. The cubic root of 138094080 is about 516.8823315172.

The spelling of 138094080 in words is "one hundred thirty-eight million, ninety-four thousand, eighty".