15000287 has 2 divisors, whose sum is σ = 15000288. Its totient is φ = 15000286.

The previous prime is 15000257. The next prime is 15000299. The reversal of 15000287 is 78200051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15000287 - 2⁸ = 15000031 is a prime.

It is a super-2 number, since 2×15000287² = 450017220164738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15000257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7500143 + 7500144.

It is an arithmetic number, because the mean of its divisors is an integer number (7500144).

Almost surely, 2^15000287 is an apocalyptic number.

15000287 is a deficient number, since it is larger than the sum of its proper divisors (1).

15000287 is an equidigital number, since it uses as much as digits as its factorization.

15000287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 15000287 is about 3873.0203975709. The cubic root of 15000287 is about 246.6227803183.

The spelling of 15000287 in words is "fifteen million, two hundred eighty-seven", and thus it is an aban number.