15222323 has 2 divisors, whose sum is σ = 15222324. Its totient is φ = 15222322.

The previous prime is 15222257. The next prime is 15222371. The reversal of 15222323 is 32322251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15222323 - 2¹⁶ = 15156787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15222295 and 15222304.

It is not a weakly prime, because it can be changed into another prime (15222373) 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, 7611161 + 7611162.

It is an arithmetic number, because the mean of its divisors is an integer number (7611162).

Almost surely, 2^15222323 is an apocalyptic number.

15222323 is a deficient number, since it is larger than the sum of its proper divisors (1).

15222323 is an equidigital number, since it uses as much as digits as its factorization.

15222323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 20.

The square root of 15222323 is about 3901.5795519251. The cubic root of 15222323 is about 247.8336716406.

Adding to 15222323 its reverse (32322251), we get a palindrome (47544574).

The spelling of 15222323 in words is "fifteen million, two hundred twenty-two thousand, three hundred twenty-three".