1151287 has 2 divisors, whose sum is σ = 1151288. Its totient is φ = 1151286.

The previous prime is 1151251. The next prime is 1151303. The reversal of 1151287 is 7821511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1151287 - 2⁷ = 1151159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1151237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575643 + 575644.

It is an arithmetic number, because the mean of its divisors is an integer number (575644).

2^1151287 is an apocalyptic number.

1151287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1151287 is an equidigital number, since it uses as much as digits as its factorization.

1151287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 25.

The square root of 1151287 is about 1072.9804285261. The cubic root of 1151287 is about 104.8080241219.

Adding to 1151287 its reverse (7821511), we get a palindrome (8972798).

The spelling of 1151287 in words is "one million, one hundred fifty-one thousand, two hundred eighty-seven".