13253939 has 4 divisors (see below), whose sum is σ = 13281000. Its totient is φ = 13226880.

The previous prime is 13253923. The next prime is 13253951. The reversal of 13253939 is 93935231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13253939 - 2⁴ = 13253923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13253899 and 13253908.

It is not an unprimeable number, because it can be changed into a prime (13253239) 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 3 ways as a sum of consecutive naturals, for example, 12782 + ... + 13779.

It is an arithmetic number, because the mean of its divisors is an integer number (3320250).

Almost surely, 2^13253939 is an apocalyptic number.

13253939 is a deficient number, since it is larger than the sum of its proper divisors (27061).

13253939 is an equidigital number, since it uses as much as digits as its factorization.

13253939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27060.

The product of its digits is 21870, while the sum is 35.

The square root of 13253939 is about 3640.5959676954. The cubic root of 13253939 is about 236.6546210449.

The spelling of 13253939 in words is "thirteen million, two hundred fifty-three thousand, nine hundred thirty-nine".