1326451164 has 24 divisors (see below), whose sum is σ = 3095863680. Its totient is φ = 442034544.

The previous prime is 1326451151. The next prime is 1326451187. The reversal of 1326451164 is 4611546231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42057 + ... + 66495.

It is an arithmetic number, because the mean of its divisors is an integer number (128994320).

Almost surely, 2^1326451164 is an apocalyptic number.

It is an amenable number.

1326451164 is an abundant number, since it is smaller than the sum of its proper divisors (1769412516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1326451164 is a wasteful number, since it uses less digits than its factorization.

1326451164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28969 (or 28967 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1326451164 is about 36420.4772621118. The cubic root of 1326451164 is about 1098.7454468575.

Adding to 1326451164 its reverse (4611546231), we get a palindrome (5937997395).

The spelling of 1326451164 in words is "one billion, three hundred twenty-six million, four hundred fifty-one thousand, one hundred sixty-four".