15222839 has 2 divisors, whose sum is σ = 15222840. Its totient is φ = 15222838.

The previous prime is 15222833. The next prime is 15222887. The reversal of 15222839 is 93822251.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (93822251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15222839 - 2⁸ = 15222583 is a 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 (15222833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7611419 + 7611420.

It is an arithmetic number, because the mean of its divisors is an integer number (7611420).

Almost surely, 2^15222839 is an apocalyptic number.

15222839 is a deficient number, since it is larger than the sum of its proper divisors (1).

15222839 is an equidigital number, since it uses as much as digits as its factorization.

15222839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 15222839 is about 3901.6456784285. The cubic root of 15222839 is about 247.8364719300.

It can be divided in two parts, 15222 and 839, that added together give a palindrome (16061).

The spelling of 15222839 in words is "fifteen million, two hundred twenty-two thousand, eight hundred thirty-nine".