1147206287 has 2 divisors, whose sum is σ = 1147206288. Its totient is φ = 1147206286.

The previous prime is 1147206283. The next prime is 1147206289. The reversal of 1147206287 is 7826027411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1147206287 - 2² = 1147206283 is a prime.

Together with 1147206289, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1147206287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1147206283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573603143 + 573603144.

It is an arithmetic number, because the mean of its divisors is an integer number (573603144).

Almost surely, 2^1147206287 is an apocalyptic number.

1147206287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147206287 is an equidigital number, since it uses as much as digits as its factorization.

1147206287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 1147206287 is about 33870.4338177119. The cubic root of 1147206287 is about 1046.8404756976.

The spelling of 1147206287 in words is "one billion, one hundred forty-seven million, two hundred six thousand, two hundred eighty-seven".