139626168 has 128 divisors (see below), whose sum is σ = 411505920. Its totient is φ = 39004160.

The previous prime is 139626167. The next prime is 139626173. The reversal of 139626168 is 861626931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139626167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237571 + ... + 238157.

It is an arithmetic number, because the mean of its divisors is an integer number (3214890).

Almost surely, 2^139626168 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 139626168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205752960).

139626168 is an abundant number, since it is smaller than the sum of its proper divisors (271879752).

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

139626168 is a wasteful number, since it uses less digits than its factorization.

139626168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 139626168 is about 11816.3517212378. The cubic root of 139626168 is about 518.7868266690.

The spelling of 139626168 in words is "one hundred thirty-nine million, six hundred twenty-six thousand, one hundred sixty-eight".