139321616 has 20 divisors (see below), whose sum is σ = 308498112. Its totient is φ = 59709216.

The previous prime is 139321601. The next prime is 139321619. The reversal of 139321616 is 616123931.

139321616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139321619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621860 + ... + 622083.

Almost surely, 2^139321616 is an apocalyptic number.

139321616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139321616 is an abundant number, since it is smaller than the sum of its proper divisors (169176496).

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

139321616 is a wasteful number, since it uses less digits than its factorization.

139321616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243958 (or 1243952 counting only the distinct ones).

The product of its digits is 5832, while the sum is 32.

The square root of 139321616 is about 11803.4577984589. The cubic root of 139321616 is about 518.4093602245.

The spelling of 139321616 in words is "one hundred thirty-nine million, three hundred twenty-one thousand, six hundred sixteen".