139796916 has 96 divisors (see below), whose sum is σ = 397393920. Its totient is φ = 37338624.

The previous prime is 139796897. The next prime is 139796929. The reversal of 139796916 is 619697931.

It is a super-2 number, since 2×139796916² = 39086355446222112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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 31 ways as a sum of consecutive naturals, for example, 318225 + ... + 318663.

It is an arithmetic number, because the mean of its divisors is an integer number (4139520).

Almost surely, 2^139796916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139796916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198696960).

139796916 is an abundant number, since it is smaller than the sum of its proper divisors (257597004).

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

139796916 is a wasteful number, since it uses less digits than its factorization.

139796916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 691 counting only the distinct ones).

The product of its digits is 551124, while the sum is 51.

The square root of 139796916 is about 11823.5745863931. The cubic root of 139796916 is about 518.9982142862.

The spelling of 139796916 in words is "one hundred thirty-nine million, seven hundred ninety-six thousand, nine hundred sixteen".