1330943941 has 2 divisors, whose sum is σ = 1330943942. Its totient is φ = 1330943940.

The previous prime is 1330943899. The next prime is 1330943959. The reversal of 1330943941 is 1493490331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832091716 + 498852225 = 28846^2 + 22335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330943941 - 2¹¹ = 1330941893 is a prime.

It is a super-2 number, since 2×1330943941² = 3542823548169222962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1330943941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330943981) 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 as a sum of consecutive naturals, namely, 665471970 + 665471971.

It is an arithmetic number, because the mean of its divisors is an integer number (665471971).

Almost surely, 2^1330943941 is an apocalyptic number.

It is an amenable number.

1330943941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330943941 is an equidigital number, since it uses as much as digits as its factorization.

1330943941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 1330943941 is about 36482.1043937983. The cubic root of 1330943941 is about 1099.9845565325.

The spelling of 1330943941 in words is "one billion, three hundred thirty million, nine hundred forty-three thousand, nine hundred forty-one".