2015823287 has 2 divisors, whose sum is σ = 2015823288. Its totient is φ = 2015823286.

The previous prime is 2015823281. The next prime is 2015823289. The reversal of 2015823287 is 7823285102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2015823287 - 2¹² = 2015819191 is a prime.

It is a super-2 number, since 2×2015823287² = 8127087048822968738, which contains 22 as substring.

Together with 2015823289, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2015823287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015823281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007911643 + 1007911644.

It is an arithmetic number, because the mean of its divisors is an integer number (1007911644).

Almost surely, 2^2015823287 is an apocalyptic number.

2015823287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015823287 is an equidigital number, since it uses as much as digits as its factorization.

2015823287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 2015823287 is about 44897.9207425021. The cubic root of 2015823287 is about 1263.2350076441.

The spelling of 2015823287 in words is "two billion, fifteen million, eight hundred twenty-three thousand, two hundred eighty-seven".