1445427563 has 2 divisors, whose sum is σ = 1445427564. Its totient is φ = 1445427562.

The previous prime is 1445427509. The next prime is 1445427569. The reversal of 1445427563 is 3657245441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1445427563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1445427563.

It is not a weakly prime, because it can be changed into another prime (1445427569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722713781 + 722713782.

It is an arithmetic number, because the mean of its divisors is an integer number (722713782).

Almost surely, 2^1445427563 is an apocalyptic number.

1445427563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1445427563 is an equidigital number, since it uses as much as digits as its factorization.

1445427563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 41.

The square root of 1445427563 is about 38018.7790835003. The cubic root of 1445427563 is about 1130.6602148606.

The spelling of 1445427563 in words is "one billion, four hundred forty-five million, four hundred twenty-seven thousand, five hundred sixty-three".