139038016 has 28 divisors (see below), whose sum is σ = 297128692. Its totient is φ = 64171008.

The previous prime is 139037993. The next prime is 139038017. The reversal of 139038016 is 610830931.

139038016 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 32535616 + 106502400 = 5704^2 + 10320^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139038017) 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, 82725 + ... + 84388.

It is an arithmetic number, because the mean of its divisors is an integer number (10611739).

Almost surely, 2^139038016 is an apocalyptic number.

139038016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139038016 is an abundant number, since it is smaller than the sum of its proper divisors (158090676).

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

139038016 is a wasteful number, since it uses less digits than its factorization.

139038016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167138 (or 167128 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 139038016 is about 11791.4382498489. The cubic root of 139038016 is about 518.0573670707.

Adding to 139038016 its reverse (610830931), we get a palindrome (749868947).

The spelling of 139038016 in words is "one hundred thirty-nine million, thirty-eight thousand, sixteen".