15328045 has 4 divisors (see below), whose sum is σ = 18393660. Its totient is φ = 12262432.

The previous prime is 15328039. The next prime is 15328057. The reversal of 15328045 is 54082351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54082351 = 757 ⋅71443.

It can be written as a sum of positive squares in 2 ways, for example, as 5171076 + 10156969 = 2274^2 + 3187^2 .

It is a cyclic number.

It is not a de Polignac number, because 15328045 - 2⁵ = 15328013 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532800 + ... + 1532809.

It is an arithmetic number, because the mean of its divisors is an integer number (4598415).

Almost surely, 2^15328045 is an apocalyptic number.

It is an amenable number.

15328045 is a deficient number, since it is larger than the sum of its proper divisors (3065615).

15328045 is an equidigital number, since it uses as much as digits as its factorization.

15328045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065614.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 15328045 is about 3915.1047240144. The cubic root of 15328045 is about 248.4060995215.

The spelling of 15328045 in words is "fifteen million, three hundred twenty-eight thousand, forty-five".