64473133 has 2 divisors, whose sum is σ = 64473134. Its totient is φ = 64473132.

The previous prime is 64473109. The next prime is 64473139. The reversal of 64473133 is 33137446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43797924 + 20675209 = 6618^2 + 4547^2 .

It is a cyclic number.

It is not a de Polignac number, because 64473133 - 2²¹ = 62375981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64473095 and 64473104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64473139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32236566 + 32236567.

It is an arithmetic number, because the mean of its divisors is an integer number (32236567).

Almost surely, 2^64473133 is an apocalyptic number.

It is an amenable number.

64473133 is a deficient number, since it is larger than the sum of its proper divisors (1).

64473133 is an equidigital number, since it uses as much as digits as its factorization.

64473133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 31.

The square root of 64473133 is about 8029.5163615251. The cubic root of 64473133 is about 400.9832746966.

The spelling of 64473133 in words is "sixty-four million, four hundred seventy-three thousand, one hundred thirty-three".