15189009 has 12 divisors (see below), whose sum is σ = 22261008. Its totient is φ = 9205240.

The previous prime is 15189001. The next prime is 15189023. The reversal of 15189009 is 90098151.

It is not a de Polignac number, because 15189009 - 2³ = 15189001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (15189001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20559 + ... + 21284.

It is an arithmetic number, because the mean of its divisors is an integer number (1855084).

Almost surely, 2^15189009 is an apocalyptic number.

It is an amenable number.

15189009 is a deficient number, since it is larger than the sum of its proper divisors (7071999).

15189009 is a wasteful number, since it uses less digits than its factorization.

15189009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41868 (or 41857 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 15189009 is about 3897.3079170114. The cubic root of 15189009 is about 247.6527452197.

The spelling of 15189009 in words is "fifteen million, one hundred eighty-nine thousand, nine".