1330541813 has 2 divisors, whose sum is σ = 1330541814. Its totient is φ = 1330541812.

The previous prime is 1330541809. The next prime is 1330541851. The reversal of 1330541813 is 3181450331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1160969329 + 169572484 = 34073^2 + 13022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330541813 - 2² = 1330541809 is a prime.

It is a super-2 number, since 2×1330541813² = 3540683032282653938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330541893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665270906 + 665270907.

It is an arithmetic number, because the mean of its divisors is an integer number (665270907).

Almost surely, 2^1330541813 is an apocalyptic number.

It is an amenable number.

1330541813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330541813 is an equidigital number, since it uses as much as digits as its factorization.

1330541813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1330541813 is about 36476.5926725619. The cubic root of 1330541813 is about 1099.8737631995.

The spelling of 1330541813 in words is "one billion, three hundred thirty million, five hundred forty-one thousand, eight hundred thirteen".