1015872287 has 2 divisors, whose sum is σ = 1015872288. Its totient is φ = 1015872286.

The previous prime is 1015872283. The next prime is 1015872289. The reversal of 1015872287 is 7822785101.

It is a strong prime.

It is an emirp because it is prime and its reverse (7822785101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1015872287 - 2² = 1015872283 is a prime.

It is a super-2 number, since 2×1015872287² = 2063993006989220738, which contains 22 as substring.

Together with 1015872289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1015872283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507936143 + 507936144.

It is an arithmetic number, because the mean of its divisors is an integer number (507936144).

Almost surely, 2^1015872287 is an apocalyptic number.

1015872287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1015872287 is an equidigital number, since it uses as much as digits as its factorization.

1015872287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62720, while the sum is 41.

The square root of 1015872287 is about 31872.7514814771. The cubic root of 1015872287 is about 1005.2630144186.

The spelling of 1015872287 in words is "one billion, fifteen million, eight hundred seventy-two thousand, two hundred eighty-seven".