139599696 has 80 divisors (see below), whose sum is σ = 388546560. Its totient is φ = 43063680.

The previous prime is 139599671. The next prime is 139599709. The reversal of 139599696 is 696995931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32185 + ... + 36263.

It is an arithmetic number, because the mean of its divisors is an integer number (4856832).

Almost surely, 2^139599696 is an apocalyptic number.

139599696 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 139599696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194273280).

139599696 is an abundant number, since it is smaller than the sum of its proper divisors (248946864).

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

139599696 is a wasteful number, since it uses less digits than its factorization.

139599696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4144 (or 4138 counting only the distinct ones).

The product of its digits is 3542940, while the sum is 57.

The square root of 139599696 is about 11815.2315254505. The cubic root of 139599696 is about 518.7540386583.

The spelling of 139599696 in words is "one hundred thirty-nine million, five hundred ninety-nine thousand, six hundred ninety-six".