139031016 has 16 divisors (see below), whose sum is σ = 347577600. Its totient is φ = 46343664.

The previous prime is 139030979. The next prime is 139031107. The reversal of 139031016 is 610130931.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5792959 = 139031016 / (1 + 3 + 9 + 0 + 3 + 1 + 0 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2896456 + ... + 2896503.

It is an arithmetic number, because the mean of its divisors is an integer number (21723600).

Almost surely, 2^139031016 is an apocalyptic number.

It is an amenable number.

139031016 is an abundant number, since it is smaller than the sum of its proper divisors (208546584).

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

139031016 is a wasteful number, since it uses less digits than its factorization.

139031016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5792968 (or 5792964 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 139031016 is about 11791.1414205750. The cubic root of 139031016 is about 518.0486728959.

Adding to 139031016 its reverse (610130931), we get a palindrome (749161947).

The spelling of 139031016 in words is "one hundred thirty-nine million, thirty-one thousand, sixteen".