13825039 has 4 divisors (see below), whose sum is σ = 14271040. Its totient is φ = 13379040.

The previous prime is 13825037. The next prime is 13825043. The reversal of 13825039 is 93052831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93052831 = 3137 ⋅29663.

It is a cyclic number.

It is not a de Polignac number, because 13825039 - 2¹ = 13825037 is a prime.

It is a super-2 number, since 2×13825039² = 382263406703042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 445969 = 13825039 / (1 + 3 + 8 + 2 + 5 + 0 + 3 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13825039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13825033) 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, 222954 + ... + 223015.

It is an arithmetic number, because the mean of its divisors is an integer number (3567760).

Almost surely, 2^13825039 is an apocalyptic number.

13825039 is a deficient number, since it is larger than the sum of its proper divisors (446001).

13825039 is an equidigital number, since it uses as much as digits as its factorization.

13825039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446000.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 13825039 is about 3718.2037329872. The cubic root of 13825039 is about 240.0060125809.

The spelling of 13825039 in words is "thirteen million, eight hundred twenty-five thousand, thirty-nine".