1145412197 has 2 divisors, whose sum is σ = 1145412198. Its totient is φ = 1145412196.

The previous prime is 1145412187. The next prime is 1145412227. The reversal of 1145412197 is 7912145411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1145213281 + 198916 = 33841^2 + 446^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145412197 - 2²⁸ = 876976741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145412127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572706098 + 572706099.

It is an arithmetic number, because the mean of its divisors is an integer number (572706099).

Almost surely, 2^1145412197 is an apocalyptic number.

It is an amenable number.

1145412197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145412197 is an equidigital number, since it uses as much as digits as its factorization.

1145412197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 35.

The square root of 1145412197 is about 33843.9388517353. The cubic root of 1145412197 is about 1046.2944809174.

The spelling of 1145412197 in words is "one billion, one hundred forty-five million, four hundred twelve thousand, one hundred ninety-seven".