1338213539 has 16 divisors (see below), whose sum is σ = 1458342144. Its totient is φ = 1220592000.

The previous prime is 1338213533. The next prime is 1338213559. The reversal of 1338213539 is 9353128331.

It is a cyclic number.

It is not a de Polignac number, because 1338213539 - 2¹² = 1338209443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338213533) 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, 1132529 + ... + 1133709.

It is an arithmetic number, because the mean of its divisors is an integer number (91146384).

Almost surely, 2^1338213539 is an apocalyptic number.

1338213539 is a deficient number, since it is larger than the sum of its proper divisors (120128605).

1338213539 is a wasteful number, since it uses less digits than its factorization.

1338213539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158.

The product of its digits is 58320, while the sum is 38.

The square root of 1338213539 is about 36581.6010994598. The cubic root of 1338213539 is about 1101.9836216265.

The spelling of 1338213539 in words is "one billion, three hundred thirty-eight million, two hundred thirteen thousand, five hundred thirty-nine".