1365513263 has 2 divisors, whose sum is σ = 1365513264. Its totient is φ = 1365513262.

The previous prime is 1365513239. The next prime is 1365513277. The reversal of 1365513263 is 3623155631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365513263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1365513463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682756631 + 682756632.

It is an arithmetic number, because the mean of its divisors is an integer number (682756632).

Almost surely, 2^1365513263 is an apocalyptic number.

1365513263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365513263 is an equidigital number, since it uses as much as digits as its factorization.

1365513263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 35.

The square root of 1365513263 is about 36952.8518926483. The cubic root of 1365513263 is about 1109.4267697356.

Adding to 1365513263 its reverse (3623155631), we get a palindrome (4988668894).

The spelling of 1365513263 in words is "one billion, three hundred sixty-five million, five hundred thirteen thousand, two hundred sixty-three".