139090896 has 120 divisors (see below), whose sum is σ = 455357760. Its totient is φ = 38803968.

The previous prime is 139090879. The next prime is 139090937. The reversal of 139090896 is 698090931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41740 + ... + 44948.

It is an arithmetic number, because the mean of its divisors is an integer number (3794648).

Almost surely, 2^139090896 is an apocalyptic number.

139090896 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 139090896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227678880).

139090896 is an abundant number, since it is smaller than the sum of its proper divisors (316266864).

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

139090896 is a wasteful number, since it uses less digits than its factorization.

139090896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 139090896 is about 11793.6803416067. The cubic root of 139090896 is about 518.1230359242.

It can be divided in two parts, 13 and 9090896, that added together give a palindrome (9090909).

The spelling of 139090896 in words is "one hundred thirty-nine million, ninety thousand, eight hundred ninety-six".