1145889247 has 2 divisors, whose sum is σ = 1145889248. Its totient is φ = 1145889246.

The previous prime is 1145889229. The next prime is 1145889253. The reversal of 1145889247 is 7429885411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145889247 - 2¹¹ = 1145887199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1145889247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145889047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572944623 + 572944624.

It is an arithmetic number, because the mean of its divisors is an integer number (572944624).

Almost surely, 2^1145889247 is an apocalyptic number.

1145889247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145889247 is an equidigital number, since it uses as much as digits as its factorization.

1145889247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 49.

The square root of 1145889247 is about 33850.9859088328. The cubic root of 1145889247 is about 1046.4397169890.

The spelling of 1145889247 in words is "one billion, one hundred forty-five million, eight hundred eighty-nine thousand, two hundred forty-seven".