1263130365 has 32 divisors (see below), whose sum is σ = 2325254400. Its totient is φ = 573548544.

The previous prime is 1263130333. The next prime is 1263130373. The reversal of 1263130365 is 5630313621.

It is a happy number.

It is not a de Polignac number, because 1263130365 - 2⁵ = 1263130333 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 31 ways as a sum of consecutive naturals, for example, 24724 + ... + 56013.

It is an arithmetic number, because the mean of its divisors is an integer number (72664200).

Almost surely, 2^1263130365 is an apocalyptic number.

1263130365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1263130365 is a deficient number, since it is larger than the sum of its proper divisors (1062124035).

1263130365 is a wasteful number, since it uses less digits than its factorization.

1263130365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80901.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 1263130365 is about 35540.5453672281. The cubic root of 1263130365 is about 1080.9760166948.

Adding to 1263130365 its reverse (5630313621), we get a palindrome (6893443986).

The spelling of 1263130365 in words is "one billion, two hundred sixty-three million, one hundred thirty thousand, three hundred sixty-five".