12815087 has 2 divisors, whose sum is σ = 12815088. Its totient is φ = 12815086.

The previous prime is 12815081. The next prime is 12815107. The reversal of 12815087 is 78051821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (78051821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12815087 - 2¹⁰ = 12814063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12815081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6407543 + 6407544.

It is an arithmetic number, because the mean of its divisors is an integer number (6407544).

Almost surely, 2^12815087 is an apocalyptic number.

12815087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12815087 is an equidigital number, since it uses as much as digits as its factorization.

12815087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 12815087 is about 3579.8166154148. The cubic root of 12815087 is about 234.0132885044.

The spelling of 12815087 in words is "twelve million, eight hundred fifteen thousand, eighty-seven".