15264839 has 2 divisors, whose sum is σ = 15264840. Its totient is φ = 15264838.

The previous prime is 15264797. The next prime is 15264857. The reversal of 15264839 is 93846251.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93846251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15264839 - 2²⁰ = 14216263 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15264859) 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 as a sum of consecutive naturals, namely, 7632419 + 7632420.

It is an arithmetic number, because the mean of its divisors is an integer number (7632420).

Almost surely, 2^15264839 is an apocalyptic number.

15264839 is a deficient number, since it is larger than the sum of its proper divisors (1).

15264839 is an equidigital number, since it uses as much as digits as its factorization.

15264839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 15264839 is about 3907.0243152558. The cubic root of 15264839 is about 248.0641905900.

The spelling of 15264839 in words is "fifteen million, two hundred sixty-four thousand, eight hundred thirty-nine".