139059456 has 72 divisors (see below), whose sum is σ = 391908384. Its totient is φ = 43622400.

The previous prime is 139059433. The next prime is 139059457. The reversal of 139059456 is 654950931.

It is not an unprimeable number, because it can be changed into a prime (139059457) 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, 7731 + ... + 18381.

It is an arithmetic number, because the mean of its divisors is an integer number (5443172).

Almost surely, 2^139059456 is an apocalyptic number.

139059456 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 139059456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195954192).

139059456 is an abundant number, since it is smaller than the sum of its proper divisors (252848928).

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

139059456 is a wasteful number, since it uses less digits than its factorization.

139059456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687 (or 10673 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 139059456 is about 11792.3473490226. The cubic root of 139059456 is about 518.0839942705.

The spelling of 139059456 in words is "one hundred thirty-nine million, fifty-nine thousand, four hundred fifty-six".