139705696 has 48 divisors (see below), whose sum is σ = 303464448. Its totient is φ = 62899200.

The previous prime is 139705693. The next prime is 139705723. The reversal of 139705696 is 696507931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139705693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12961 + ... + 21151.

It is an arithmetic number, because the mean of its divisors is an integer number (6322176).

Almost surely, 2^139705696 is an apocalyptic number.

139705696 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 139705696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151732224).

139705696 is an abundant number, since it is smaller than the sum of its proper divisors (163758752).

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

139705696 is a wasteful number, since it uses less digits than its factorization.

139705696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255 (or 8247 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 139705696 is about 11819.7164094575. The cubic root of 139705696 is about 518.8853045035.

The spelling of 139705696 in words is "one hundred thirty-nine million, seven hundred five thousand, six hundred ninety-six".