1245446663 has 2 divisors, whose sum is σ = 1245446664. Its totient is φ = 1245446662.

The previous prime is 1245446659. The next prime is 1245446717. The reversal of 1245446663 is 3666445421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1245446663 - 2² = 1245446659 is a prime.

It is a super-2 number, since 2×1245446663² = 3102274780755671138, 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 1245446663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245446063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622723331 + 622723332.

It is an arithmetic number, because the mean of its divisors is an integer number (622723332).

Almost surely, 2^1245446663 is an apocalyptic number.

1245446663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245446663 is an equidigital number, since it uses as much as digits as its factorization.

1245446663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 41.

The square root of 1245446663 is about 35290.8864014493. The cubic root of 1245446663 is about 1075.9077713199.

The spelling of 1245446663 in words is "one billion, two hundred forty-five million, four hundred forty-six thousand, six hundred sixty-three".