13949138 has 8 divisors (see below), whose sum is σ = 23912832. Its totient is φ = 5978196.

The previous prime is 13949137. The next prime is 13949147. The reversal of 13949138 is 83194931.

It is a happy number.

13949138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13949137) 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, 498170 + ... + 498197.

It is an arithmetic number, because the mean of its divisors is an integer number (2989104).

Almost surely, 2^13949138 is an apocalyptic number.

13949138 is a deficient number, since it is larger than the sum of its proper divisors (9963694).

13949138 is an equidigital number, since it uses as much as digits as its factorization.

13949138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996376.

The product of its digits is 23328, while the sum is 38.

The square root of 13949138 is about 3734.8544817703. The cubic root of 13949138 is about 240.7220040218.

The spelling of 13949138 in words is "thirteen million, nine hundred forty-nine thousand, one hundred thirty-eight".