13939146 has 48 divisors (see below), whose sum is σ = 33022080. Its totient is φ = 4223520.

The previous prime is 13939117. The next prime is 13939153. The reversal of 13939146 is 64193931.

13939146 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13939146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16195 + ... + 17033.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^13939146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13939146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16511040).

13939146 is an abundant number, since it is smaller than the sum of its proper divisors (19082934).

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

13939146 is a wasteful number, since it uses less digits than its factorization.

13939146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 928 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 13939146 is about 3733.5165728841. The cubic root of 13939146 is about 240.6645125646.

The spelling of 13939146 in words is "thirteen million, nine hundred thirty-nine thousand, one hundred forty-six".