1478312663 has 2 divisors, whose sum is σ = 1478312664. Its totient is φ = 1478312662.

The previous prime is 1478312621. The next prime is 1478312683. The reversal of 1478312663 is 3662138741.

It is a strong prime.

It is an emirp because it is prime and its reverse (3662138741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1478312663 - 2¹⁴ = 1478296279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1478312663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1478312683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739156331 + 739156332.

It is an arithmetic number, because the mean of its divisors is an integer number (739156332).

Almost surely, 2^1478312663 is an apocalyptic number.

1478312663 is a deficient number, since it is larger than the sum of its proper divisors (1).

1478312663 is an equidigital number, since it uses as much as digits as its factorization.

1478312663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 1478312663 is about 38448.8317507828. The cubic root of 1478312663 is about 1139.1705937474.

The spelling of 1478312663 in words is "one billion, four hundred seventy-eight million, three hundred twelve thousand, six hundred sixty-three".