1329325201 has 4 divisors (see below), whose sum is σ = 1329412900. Its totient is φ = 1329237504.

The previous prime is 1329325199. The next prime is 1329325213. The reversal of 1329325201 is 1025239231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 247244176 + 1082081025 = 15724^2 + 32895^2 .

It is a 3-Lehmer number, since φ(1329325201) divides (1329325201-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1329325201 - 2¹ = 1329325199 is a prime.

It is a deceptive number, since it divides R_1329325200.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1329325201.

It is not an unprimeable number, because it can be changed into a prime (1329322201) 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, 14616 + ... + 53593.

It is an arithmetic number, because the mean of its divisors is an integer number (332353225).

Almost surely, 2^1329325201 is an apocalyptic number.

1329325201 is the 19489-th nonagonal number.

It is an amenable number.

1329325201 is a deficient number, since it is larger than the sum of its proper divisors (87699).

1329325201 is an equidigital number, since it uses as much as digits as its factorization.

1329325201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87698.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1329325201 is about 36459.9122461917. The cubic root of 1329325201 is about 1099.5384292125.

The spelling of 1329325201 in words is "one billion, three hundred twenty-nine million, three hundred twenty-five thousand, two hundred one".