1365313263 has 8 divisors (see below), whose sum is σ = 1828581888. Its totient is φ = 906126744.

The previous prime is 1365313249. The next prime is 1365313289. The reversal of 1365313263 is 3623135631.

It is a happy number.

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

It is not a de Polignac number, because 1365313263 - 2⁴ = 1365313247 is a prime.

It is a super-2 number, since 2×1365313263² = 3728160612247414338, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365311263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1019745 + ... + 1021082.

It is an arithmetic number, because the mean of its divisors is an integer number (228572736).

Almost surely, 2^1365313263 is an apocalyptic number.

1365313263 is a deficient number, since it is larger than the sum of its proper divisors (463268625).

1365313263 is a wasteful number, since it uses less digits than its factorization.

1365313263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041053.

The product of its digits is 29160, while the sum is 33.

The square root of 1365313263 is about 36950.1456424735. The cubic root of 1365313263 is about 1109.3726030000.

Adding to 1365313263 its reverse (3623135631), we get a palindrome (4988448894).

The spelling of 1365313263 in words is "one billion, three hundred sixty-five million, three hundred thirteen thousand, two hundred sixty-three".