1263366045 has 16 divisors (see below), whose sum is σ = 2245984320. Its totient is φ = 673795152.

The previous prime is 1263366037. The next prime is 1263366061. The reversal of 1263366045 is 5406633621.

1263366045 is a `hidden beast` number, since 12 + 6 + 3 + 36 + 604 + 5 = 666.

It is not a de Polignac number, because 1263366045 - 2³ = 1263366037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4678999 + ... + 4679268.

It is an arithmetic number, because the mean of its divisors is an integer number (140374020).

Almost surely, 2^1263366045 is an apocalyptic number.

1263366045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1263366045 is a deficient number, since it is larger than the sum of its proper divisors (982618275).

1263366045 is an equidigital number, since it uses as much as digits as its factorization.

1263366045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358281 (or 9358275 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1263366045 is about 35543.8608623205. The cubic root of 1263366045 is about 1081.0432434808.

Adding to 1263366045 its reverse (5406633621), we get a palindrome (6669999666).

The spelling of 1263366045 in words is "one billion, two hundred sixty-three million, three hundred sixty-six thousand, forty-five".