139238316 has 72 divisors (see below), whose sum is σ = 403332384. Its totient is φ = 39674880.

The previous prime is 139238311. The next prime is 139238317. The reversal of 139238316 is 613832931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (139238311) 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 23 ways as a sum of consecutive naturals, for example, 169186 + ... + 170006.

Almost surely, 2^139238316 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 139238316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201666192).

139238316 is an abundant number, since it is smaller than the sum of its proper divisors (264094068).

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

139238316 is a wasteful number, since it uses less digits than its factorization.

139238316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511 (or 1506 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 139238316 is about 11799.9286438520. The cubic root of 139238316 is about 518.3060211298.

It can be divided in two parts, 13 and 9238316, that added together give a palindrome (9238329).

The spelling of 139238316 in words is "one hundred thirty-nine million, two hundred thirty-eight thousand, three hundred sixteen".