1313232636 has 24 divisors (see below), whose sum is σ = 3169872720. Its totient is φ = 422649472.

The previous prime is 1313232631. The next prime is 1313232637. The reversal of 1313232636 is 6362323131.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313232631) by changing a digit.

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, 1886481 + ... + 1887176.

It is an arithmetic number, because the mean of its divisors is an integer number (132078030).

Almost surely, 2^1313232636 is an apocalyptic number.

It is an amenable number.

1313232636 is an abundant number, since it is smaller than the sum of its proper divisors (1856640084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313232636 is a wasteful number, since it uses less digits than its factorization.

1313232636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3773693 (or 3773691 counting only the distinct ones).

The product of its digits is 11664, while the sum is 30.

The square root of 1313232636 is about 36238.5517922557. The cubic root of 1313232636 is about 1095.0834672932.

Adding to 1313232636 its reverse (6362323131), we get a palindrome (7675555767).

The spelling of 1313232636 in words is "one billion, three hundred thirteen million, two hundred thirty-two thousand, six hundred thirty-six".