1338065013 has 16 divisors (see below), whose sum is σ = 1838735360. Its totient is φ = 865018224.

The previous prime is 1338065009. The next prime is 1338065041. The reversal of 1338065013 is 3105608331.

It is not a de Polignac number, because 1338065013 - 2² = 1338065009 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 (1338065413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19381 + ... + 55242.

It is an arithmetic number, because the mean of its divisors is an integer number (114920960).

Almost surely, 2^1338065013 is an apocalyptic number.

It is an amenable number.

1338065013 is a deficient number, since it is larger than the sum of its proper divisors (500670347).

1338065013 is a wasteful number, since it uses less digits than its factorization.

1338065013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74808.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1338065013 is about 36579.5709788948. The cubic root of 1338065013 is about 1101.9428510344.

The spelling of 1338065013 in words is "one billion, three hundred thirty-eight million, sixty-five thousand, thirteen".