15230503 has 2 divisors, whose sum is σ = 15230504. Its totient is φ = 15230502.

The previous prime is 15230483. The next prime is 15230513. The reversal of 15230503 is 30503251.

15230503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (30503251) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15230503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15230513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7615251 + 7615252.

It is an arithmetic number, because the mean of its divisors is an integer number (7615252).

Almost surely, 2^15230503 is an apocalyptic number.

15230503 is a deficient number, since it is larger than the sum of its proper divisors (1).

15230503 is an equidigital number, since it uses as much as digits as its factorization.

15230503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 15230503 is about 3902.6277045088. The cubic root of 15230503 is about 247.8780563776.

Adding to 15230503 its reverse (30503251), we get a palindrome (45733754).

The spelling of 15230503 in words is "fifteen million, two hundred thirty thousand, five hundred three".