1339385533 has 4 divisors (see below), whose sum is σ = 1375585180. Its totient is φ = 1303185888.

The previous prime is 1339385521. The next prime is 1339385557. The reversal of 1339385533 is 3355839331.

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 851063929 + 488321604 = 29173^2 + 22098^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339385533 - 2¹⁷ = 1339254461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1339385533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339380533) 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, 18099768 + ... + 18099841.

It is an arithmetic number, because the mean of its divisors is an integer number (343896295).

Almost surely, 2^1339385533 is an apocalyptic number.

It is an amenable number.

1339385533 is a deficient number, since it is larger than the sum of its proper divisors (36199647).

1339385533 is an equidigital number, since it uses as much as digits as its factorization.

1339385533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36199646.

The product of its digits is 437400, while the sum is 43.

The square root of 1339385533 is about 36597.6164934275. The cubic root of 1339385533 is about 1102.3052298267.

The spelling of 1339385533 in words is "one billion, three hundred thirty-nine million, three hundred eighty-five thousand, five hundred thirty-three".