15320103 has 4 divisors (see below), whose sum is σ = 20426808. Its totient is φ = 10213400.

The previous prime is 15320069. The next prime is 15320119. The reversal of 15320103 is 30102351.

It is a happy number.

15320103 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15320103 - 2¹⁰ = 15319079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15320803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553348 + ... + 2553353.

It is an arithmetic number, because the mean of its divisors is an integer number (5106702).

Almost surely, 2^15320103 is an apocalyptic number.

15320103 is a deficient number, since it is larger than the sum of its proper divisors (5106705).

15320103 is an equidigital number, since it uses as much as digits as its factorization.

15320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106704.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 15320103 is about 3914.0903157694. The cubic root of 15320103 is about 248.3631894597.

Adding to 15320103 its reverse (30102351), we get a palindrome (45422454).

The spelling of 15320103 in words is "fifteen million, three hundred twenty thousand, one hundred three".