64344133 has 16 divisors (see below), whose sum is σ = 81250560. Its totient is φ = 49648896.

The previous prime is 64344131. The next prime is 64344139. The reversal of 64344133 is 33144346.

64344133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64344133 - 2¹ = 64344131 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 (64344131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9018 + ... + 14491.

It is an arithmetic number, because the mean of its divisors is an integer number (5078160).

Almost surely, 2^64344133 is an apocalyptic number.

It is an amenable number.

64344133 is a deficient number, since it is larger than the sum of its proper divisors (16906427).

64344133 is a wasteful number, since it uses less digits than its factorization.

64344133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23556.

The product of its digits is 10368, while the sum is 28.

The square root of 64344133 is about 8021.4794770042. The cubic root of 64344133 is about 400.7156625541.

Adding to 64344133 its reverse (33144346), we get a palindrome (97488479).

The spelling of 64344133 in words is "sixty-four million, three hundred forty-four thousand, one hundred thirty-three".