1326133001 has 2 divisors, whose sum is σ = 1326133002. Its totient is φ = 1326133000.

The previous prime is 1326132971. The next prime is 1326133007. The reversal of 1326133001 is 1003316231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 897601600 + 428531401 = 29960^2 + 20701^2 .

It is an emirp because it is prime and its reverse (1003316231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1326133001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1326133007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663066500 + 663066501.

It is an arithmetic number, because the mean of its divisors is an integer number (663066501).

Almost surely, 2^1326133001 is an apocalyptic number.

It is an amenable number.

1326133001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326133001 is an equidigital number, since it uses as much as digits as its factorization.

1326133001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1326133001 is about 36416.1090865018. The cubic root of 1326133001 is about 1098.6575913548.

Adding to 1326133001 its reverse (1003316231), we get a palindrome (2329449232).

The spelling of 1326133001 in words is "one billion, three hundred twenty-six million, one hundred thirty-three thousand, one".