64705133 has 2 divisors, whose sum is σ = 64705134. Its totient is φ = 64705132.

The previous prime is 64705129. The next prime is 64705139. The reversal of 64705133 is 33150746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 2184484 = 7907^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 64705133 - 2² = 64705129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64705096 and 64705105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64705139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32352566 + 32352567.

It is an arithmetic number, because the mean of its divisors is an integer number (32352567).

Almost surely, 2^64705133 is an apocalyptic number.

It is an amenable number.

64705133 is a deficient number, since it is larger than the sum of its proper divisors (1).

64705133 is an equidigital number, since it uses as much as digits as its factorization.

64705133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 64705133 is about 8043.9500868665. The cubic root of 64705133 is about 401.4636647644.

Adding to 64705133 its reverse (33150746), we get a palindrome (97855879).

The spelling of 64705133 in words is "sixty-four million, seven hundred five thousand, one hundred thirty-three".