15087022009 has 2 divisors, whose sum is σ = 15087022010. Its totient is φ = 15087022008.

The previous prime is 15087022007. The next prime is 15087022021. The reversal of 15087022009 is 90022078051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15071245225 + 15776784 = 122765^2 + 3972^2 .

It is an emirp because it is prime and its reverse (90022078051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15087022009 - 2¹ = 15087022007 is a prime.

Together with 15087022007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15087022001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7543511004 + 7543511005.

It is an arithmetic number, because the mean of its divisors is an integer number (7543511005).

Almost surely, 2^15087022009 is an apocalyptic number.

It is an amenable number.

15087022009 is a deficient number, since it is larger than the sum of its proper divisors (1).

15087022009 is an equidigital number, since it uses as much as digits as its factorization.

15087022009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 15087022009 in words is "fifteen billion, eighty-seven million, twenty-two thousand, nine".