13952239 has 8 divisors (see below), whose sum is σ = 15991808. Its totient is φ = 11924280.

The previous prime is 13952231. The next prime is 13952287. The reversal of 13952239 is 93225931.

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

It is a cyclic number.

It is not a de Polignac number, because 13952239 - 2³ = 13952231 is a prime.

It is a super-2 number, since 2×13952239² = 389329946226242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13952231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 5284.

It is an arithmetic number, because the mean of its divisors is an integer number (1998976).

Almost surely, 2^13952239 is an apocalyptic number.

13952239 is a deficient number, since it is larger than the sum of its proper divisors (2039569).

13952239 is an equidigital number, since it uses as much as digits as its factorization.

13952239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5805.

The product of its digits is 14580, while the sum is 34.

The square root of 13952239 is about 3735.2696020502. The cubic root of 13952239 is about 240.7398408139.

The spelling of 13952239 in words is "thirteen million, nine hundred fifty-two thousand, two hundred thirty-nine".