1343664013 has 4 divisors (see below), whose sum is σ = 1376436348. Its totient is φ = 1310891680.

The previous prime is 1343664001. The next prime is 1343664083. The reversal of 1343664013 is 3104663431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 415425924 + 928238089 = 20382^2 + 30467^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343664013 - 2¹³ = 1343655821 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 (1343664083) 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, 16386106 + ... + 16386187.

It is an arithmetic number, because the mean of its divisors is an integer number (344109087).

Almost surely, 2^1343664013 is an apocalyptic number.

It is an amenable number.

1343664013 is a deficient number, since it is larger than the sum of its proper divisors (32772335).

1343664013 is an equidigital number, since it uses as much as digits as its factorization.

1343664013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32772334.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 1343664013 is about 36656.0228748292. The cubic root of 1343664013 is about 1103.4777023072.

The spelling of 1343664013 in words is "one billion, three hundred forty-three million, six hundred sixty-four thousand, thirteen".