15085009 has 2 divisors, whose sum is σ = 15085010. Its totient is φ = 15085008.

The previous prime is 15084997. The next prime is 15085013. The reversal of 15085009 is 90058051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 1000000 = 3753^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 15085009 - 2⁵ = 15084977 is a prime.

It is not a weakly prime, because it can be changed into another prime (15085039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7542504 + 7542505.

It is an arithmetic number, because the mean of its divisors is an integer number (7542505).

Almost surely, 2^15085009 is an apocalyptic number.

It is an amenable number.

15085009 is a deficient number, since it is larger than the sum of its proper divisors (1).

15085009 is an equidigital number, since it uses as much as digits as its factorization.

15085009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 15085009 is about 3883.9424558044. The cubic root of 15085009 is about 247.0862194699.

The spelling of 15085009 in words is "fifteen million, eighty-five thousand, nine".