1140000287 has 2 divisors, whose sum is σ = 1140000288. Its totient is φ = 1140000286.

The previous prime is 1140000271. The next prime is 1140000401. The reversal of 1140000287 is 7820000411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140000287 - 2⁴ = 1140000271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140000187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570000143 + 570000144.

It is an arithmetic number, because the mean of its divisors is an integer number (570000144).

Almost surely, 2^1140000287 is an apocalyptic number.

1140000287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140000287 is an equidigital number, since it uses as much as digits as its factorization.

1140000287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1140000287 is about 33763.8902823712. The cubic root of 1140000287 is about 1044.6440144869.

Adding to 1140000287 its reverse (7820000411), we get a palindrome (8960000698).

The spelling of 1140000287 in words is "one billion, one hundred forty million, two hundred eighty-seven", and thus it is an aban number.