139447696 has 20 divisors (see below), whose sum is σ = 270732672. Its totient is φ = 69581216.

The previous prime is 139447687. The next prime is 139447699. The reversal of 139447696 is 696744931.

It is not an unprimeable number, because it can be changed into a prime (139447699) 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 3 ways as a sum of consecutive naturals, for example, 616 + ... + 16711.

Almost surely, 2^139447696 is an apocalyptic number.

139447696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139447696 is a deficient number, since it is larger than the sum of its proper divisors (131284976).

139447696 is a wasteful number, since it uses less digits than its factorization.

139447696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17838 (or 17832 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The square root of 139447696 is about 11808.7973985499. The cubic root of 139447696 is about 518.5656923803.

The spelling of 139447696 in words is "one hundred thirty-nine million, four hundred forty-seven thousand, six hundred ninety-six".