139984896 has 80 divisors (see below), whose sum is σ = 377487000. Its totient is φ = 46137344.

The previous prime is 139984829. The next prime is 139984903. The reversal of 139984896 is 698489931.

139984896 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139984896² = 39191542216261632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572820 + ... + 1572908.

Almost surely, 2^139984896 is an apocalyptic number.

139984896 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 139984896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188743500).

139984896 is an abundant number, since it is smaller than the sum of its proper divisors (237502104).

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

139984896 is an frugal number, since it uses more digits than its factorization.

139984896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 94 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 57.

The square root of 139984896 is about 11831.5212884903. The cubic root of 139984896 is about 519.2307363157.

The spelling of 139984896 in words is "one hundred thirty-nine million, nine hundred eighty-four thousand, eight hundred ninety-six".