1328574613 has 2 divisors, whose sum is σ = 1328574614. Its totient is φ = 1328574612.

The previous prime is 1328574581. The next prime is 1328574623. The reversal of 1328574613 is 3164758231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 934035844 + 394538769 = 30562^2 + 19863^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328574613 - 2⁵ = 1328574581 is a prime.

It is a super-2 number, since 2×1328574613² = 3530221004616199538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328574623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664287306 + 664287307.

It is an arithmetic number, because the mean of its divisors is an integer number (664287307).

Almost surely, 2^1328574613 is an apocalyptic number.

It is an amenable number.

1328574613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328574613 is an equidigital number, since it uses as much as digits as its factorization.

1328574613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 1328574613 is about 36449.6174602697. The cubic root of 1328574613 is about 1099.3314430587.

The spelling of 1328574613 in words is "one billion, three hundred twenty-eight million, five hundred seventy-four thousand, six hundred thirteen".