15072223 has 2 divisors, whose sum is σ = 15072224. Its totient is φ = 15072222.

The previous prime is 15072203. The next prime is 15072229. The reversal of 15072223 is 32227051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15072223 - 2⁵ = 15072191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15072194 and 15072203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15072229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7536111 + 7536112.

It is an arithmetic number, because the mean of its divisors is an integer number (7536112).

Almost surely, 2^15072223 is an apocalyptic number.

15072223 is a deficient number, since it is larger than the sum of its proper divisors (1).

15072223 is an equidigital number, since it uses as much as digits as its factorization.

15072223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 15072223 is about 3882.2960989600. The cubic root of 15072223 is about 247.0163899367.

Adding to 15072223 its reverse (32227051), we get a palindrome (47299274).

The spelling of 15072223 in words is "fifteen million, seventy-two thousand, two hundred twenty-three".