15081223 has 2 divisors, whose sum is σ = 15081224. Its totient is φ = 15081222.

The previous prime is 15081217. The next prime is 15081233. The reversal of 15081223 is 32218051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15081223 - 2¹³ = 15073031 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 15081194 and 15081203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15081233) 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, 7540611 + 7540612.

It is an arithmetic number, because the mean of its divisors is an integer number (7540612).

Almost surely, 2^15081223 is an apocalyptic number.

15081223 is a deficient number, since it is larger than the sum of its proper divisors (1).

15081223 is an equidigital number, since it uses as much as digits as its factorization.

15081223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 15081223 is about 3883.4550338584. The cubic root of 15081223 is about 247.0655467014.

Adding to 15081223 its reverse (32218051), we get a palindrome (47299274).

The spelling of 15081223 in words is "fifteen million, eighty-one thousand, two hundred twenty-three".