1145747 has 2 divisors, whose sum is σ = 1145748. Its totient is φ = 1145746.

The previous prime is 1145743. The next prime is 1145773. The reversal of 1145747 is 7475411.

It is a weak prime.

It is an emirp because it is prime and its reverse (7475411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145747 - 2² = 1145743 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572873 + 572874.

It is an arithmetic number, because the mean of its divisors is an integer number (572874).

2^1145747 is an apocalyptic number.

1145747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145747 is an equidigital number, since it uses as much as digits as its factorization.

1145747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3920, while the sum is 29.

The square root of 1145747 is about 1070.3957212172. The cubic root of 1145747 is about 104.6396414645.

The spelling of 1145747 in words is "one million, one hundred forty-five thousand, seven hundred forty-seven".