115089287 has 2 divisors, whose sum is σ = 115089288. Its totient is φ = 115089286.

The previous prime is 115089283. The next prime is 115089343. The reversal of 115089287 is 782980511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115089287 - 2² = 115089283 is a prime.

It is equal to p_6577529 and since 115089287 and 6577529 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115089281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57544643 + 57544644.

It is an arithmetic number, because the mean of its divisors is an integer number (57544644).

Almost surely, 2^115089287 is an apocalyptic number.

115089287 is a deficient number, since it is larger than the sum of its proper divisors (1).

115089287 is an equidigital number, since it uses as much as digits as its factorization.

115089287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 115089287 is about 10727.9675148651. The cubic root of 115089287 is about 486.4202349556.

The spelling of 115089287 in words is "one hundred fifteen million, eighty-nine thousand, two hundred eighty-seven".