138789696 has 56 divisors (see below), whose sum is σ = 372729760. Its totient is φ = 45568512.

The previous prime is 138789691. The next prime is 138789713. The reversal of 138789696 is 696987831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138789691) 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, 7470 + ... + 18258.

Almost surely, 2^138789696 is an apocalyptic number.

138789696 is a gapful number since it is divisible by the number (16) 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 138789696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186364880).

138789696 is an abundant number, since it is smaller than the sum of its proper divisors (233940064).

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

138789696 is a wasteful number, since it uses less digits than its factorization.

138789696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871 (or 10861 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 138789696 is about 11780.9038702470. The cubic root of 138789696 is about 517.7487688166.

The spelling of 138789696 in words is "one hundred thirty-eight million, seven hundred eighty-nine thousand, six hundred ninety-six".