1339365493 has 4 divisors (see below), whose sum is σ = 1385550540. Its totient is φ = 1293180448.

The previous prime is 1339365487. The next prime is 1339365527. The reversal of 1339365493 is 3945639331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3945639331 = 47 ⋅83949773.

It can be written as a sum of positive squares in 2 ways, for example, as 841986289 + 497379204 = 29017^2 + 22302^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339365493 - 2¹³ = 1339357301 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 (1339365403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23092480 + ... + 23092537.

It is an arithmetic number, because the mean of its divisors is an integer number (346387635).

Almost surely, 2^1339365493 is an apocalyptic number.

It is an amenable number.

1339365493 is a deficient number, since it is larger than the sum of its proper divisors (46185047).

1339365493 is an equidigital number, since it uses as much as digits as its factorization.

1339365493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46185046.

The product of its digits is 787320, while the sum is 46.

The square root of 1339365493 is about 36597.3427040817. The cubic root of 1339365493 is about 1102.2997322044.

The spelling of 1339365493 in words is "one billion, three hundred thirty-nine million, three hundred sixty-five thousand, four hundred ninety-three".