1336563813 has 32 divisors (see below), whose sum is σ = 1941089920. Its totient is φ = 813162240.

The previous prime is 1336563779. The next prime is 1336563827. The reversal of 1336563813 is 3183656331.

It is not a de Polignac number, because 1336563813 - 2⁹ = 1336563301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1336563413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2021703 + ... + 2022363.

It is an arithmetic number, because the mean of its divisors is an integer number (60659060).

Almost surely, 2^1336563813 is an apocalyptic number.

1336563813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1336563813 is a deficient number, since it is larger than the sum of its proper divisors (604526107).

1336563813 is a wasteful number, since it uses less digits than its factorization.

1336563813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

The product of its digits is 116640, while the sum is 39.

The square root of 1336563813 is about 36559.0455701458. The cubic root of 1336563813 is about 1101.5306001056.

The spelling of 1336563813 in words is "one billion, three hundred thirty-six million, five hundred sixty-three thousand, eight hundred thirteen".