15328741 has 4 divisors (see below), whose sum is σ = 15995232. Its totient is φ = 14662252.

The previous prime is 15328727. The next prime is 15328757. The reversal of 15328741 is 14782351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14782351 = 37 ⋅399523.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15328741 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 (15328241) 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, 333211 + ... + 333256.

It is an arithmetic number, because the mean of its divisors is an integer number (3998808).

Almost surely, 2^15328741 is an apocalyptic number.

It is an amenable number.

15328741 is a deficient number, since it is larger than the sum of its proper divisors (666491).

15328741 is an equidigital number, since it uses as much as digits as its factorization.

15328741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666490.

The product of its digits is 6720, while the sum is 31.

The square root of 15328741 is about 3915.1936095166. The cubic root of 15328741 is about 248.4098592536.

The spelling of 15328741 in words is "fifteen million, three hundred twenty-eight thousand, seven hundred forty-one".