1145321147 has 2 divisors, whose sum is σ = 1145321148. Its totient is φ = 1145321146.

The previous prime is 1145321143. The next prime is 1145321167. The reversal of 1145321147 is 7411235411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145321147 - 2² = 1145321143 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145321143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572660573 + 572660574.

It is an arithmetic number, because the mean of its divisors is an integer number (572660574).

Almost surely, 2^1145321147 is an apocalyptic number.

1145321147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145321147 is an equidigital number, since it uses as much as digits as its factorization.

1145321147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 1145321147 is about 33842.5936801540. The cubic root of 1145321147 is about 1046.2667565060.

Adding to 1145321147 its reverse (7411235411), we get a palindrome (8556556558).

The spelling of 1145321147 in words is "one billion, one hundred forty-five million, three hundred twenty-one thousand, one hundred forty-seven".