15005423 has 2 divisors, whose sum is σ = 15005424. Its totient is φ = 15005422.

The previous prime is 15005401. The next prime is 15005437. The reversal of 15005423 is 32450051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15005423 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 15005395 and 15005404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15005483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7502711 + 7502712.

It is an arithmetic number, because the mean of its divisors is an integer number (7502712).

Almost surely, 2^15005423 is an apocalyptic number.

15005423 is a deficient number, since it is larger than the sum of its proper divisors (1).

15005423 is an equidigital number, since it uses as much as digits as its factorization.

15005423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 15005423 is about 3873.6833892305. The cubic root of 15005423 is about 246.6509244478.

Adding to 15005423 its reverse (32450051), we get a palindrome (47455474).

The spelling of 15005423 in words is "fifteen million, five thousand, four hundred twenty-three".