1330999933 has 4 divisors (see below), whose sum is σ = 1363463388. Its totient is φ = 1298536480.

The previous prime is 1330999907. The next prime is 1330999961. The reversal of 1330999933 is 3399990331.

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 702144004 + 628855929 = 26498^2 + 25077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330999933 - 2¹³ = 1330991741 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 (1330999333) 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 in 3 ways as a sum of consecutive naturals, for example, 16231666 + ... + 16231747.

It is an arithmetic number, because the mean of its divisors is an integer number (340865847).

Almost surely, 2^1330999933 is an apocalyptic number.

It is an amenable number.

1330999933 is a deficient number, since it is larger than the sum of its proper divisors (32463455).

1330999933 is an equidigital number, since it uses as much as digits as its factorization.

1330999933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32463454.

The product of its (nonzero) digits is 531441, while the sum is 49.

The square root of 1330999933 is about 36482.8717756703. The cubic root of 1330999933 is about 1099.9999815427. Note that the first 4 decimals are identical.

The spelling of 1330999933 in words is "one billion, three hundred thirty million, nine hundred ninety-nine thousand, nine hundred thirty-three".