1313152663 has 4 divisors (see below), whose sum is σ = 1313229520. Its totient is φ = 1313075808.

The previous prime is 1313152649. The next prime is 1313152669. The reversal of 1313152663 is 3662513131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1313152663 - 2⁹ = 1313152151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313152669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31 + ... + 51247.

It is an arithmetic number, because the mean of its divisors is an integer number (328307380).

Almost surely, 2^1313152663 is an apocalyptic number.

1313152663 is a deficient number, since it is larger than the sum of its proper divisors (76857).

1313152663 is an equidigital number, since it uses as much as digits as its factorization.

1313152663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76856.

The product of its digits is 9720, while the sum is 31.

The square root of 1313152663 is about 36237.4483511188. The cubic root of 1313152663 is about 1095.0612374446.

Adding to 1313152663 its reverse (3662513131), we get a palindrome (4975665794).

The spelling of 1313152663 in words is "one billion, three hundred thirteen million, one hundred fifty-two thousand, six hundred sixty-three".