1340602013 has 4 divisors (see below), whose sum is σ = 1371778848. Its totient is φ = 1309425180.

The previous prime is 1340602001. The next prime is 1340602027. The reversal of 1340602013 is 3102060431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3102060431 = 17 ⋅182474143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340602013 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 (1340602213) 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, 15588353 + ... + 15588438.

It is an arithmetic number, because the mean of its divisors is an integer number (342944712).

Almost surely, 2^1340602013 is an apocalyptic number.

It is an amenable number.

1340602013 is a deficient number, since it is larger than the sum of its proper divisors (31176835).

1340602013 is an equidigital number, since it uses as much as digits as its factorization.

1340602013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31176834.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1340602013 is about 36614.2323830502. The cubic root of 1340602013 is about 1102.6388471151.

Adding to 1340602013 its reverse (3102060431), we get a palindrome (4442662444).

The spelling of 1340602013 in words is "one billion, three hundred forty million, six hundred two thousand, thirteen".