15728103 has 12 divisors (see below), whose sum is σ = 22865128. Its totient is φ = 10417680.

The previous prime is 15728101. The next prime is 15728117. The reversal of 15728103 is 30182751.

It is not a de Polignac number, because 15728103 - 2¹ = 15728101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15728101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4153 + ... + 6978.

Almost surely, 2^15728103 is an apocalyptic number.

15728103 is a deficient number, since it is larger than the sum of its proper divisors (7137025).

15728103 is a wasteful number, since it uses less digits than its factorization.

15728103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294 (or 11291 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 15728103 is about 3965.8672443742. The cubic root of 15728103 is about 250.5486775973.

The spelling of 15728103 in words is "fifteen million, seven hundred twenty-eight thousand, one hundred three".