1145246447 has 2 divisors, whose sum is σ = 1145246448. Its totient is φ = 1145246446.

The previous prime is 1145246441. The next prime is 1145246461. The reversal of 1145246447 is 7446425411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145246447 - 2¹⁸ = 1144984303 is a prime.

It is a super-2 number, since 2×1145246447² = 2623178848732247618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1145246447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145246441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572623223 + 572623224.

It is an arithmetic number, because the mean of its divisors is an integer number (572623224).

Almost surely, 2^1145246447 is an apocalyptic number.

1145246447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145246447 is an equidigital number, since it uses as much as digits as its factorization.

1145246447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The square root of 1145246447 is about 33841.4900233426. The cubic root of 1145246447 is about 1046.2440095160.

The spelling of 1145246447 in words is "one billion, one hundred forty-five million, two hundred forty-six thousand, four hundred forty-seven".