1263344055 has 8 divisors (see below), whose sum is σ = 2021350512. Its totient is φ = 673783488.

The previous prime is 1263344011. The next prime is 1263344087. The reversal of 1263344055 is 5504433621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1263344055 - 2¹³ = 1263335863 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42111454 + ... + 42111483.

It is an arithmetic number, because the mean of its divisors is an integer number (252668814).

Almost surely, 2^1263344055 is an apocalyptic number.

1263344055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1263344055 is a deficient number, since it is larger than the sum of its proper divisors (758006457).

1263344055 is an equidigital number, since it uses as much as digits as its factorization.

1263344055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84222945.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 1263344055 is about 35543.5515248547. The cubic root of 1263344055 is about 1081.0369712741.

Adding to 1263344055 its reverse (5504433621), we get a palindrome (6767777676).

The spelling of 1263344055 in words is "one billion, two hundred sixty-three million, three hundred forty-four thousand, fifty-five".