64711133 has 2 divisors, whose sum is σ = 64711134. Its totient is φ = 64711132.

The previous prime is 64711123. The next prime is 64711159. The reversal of 64711133 is 33111746.

It is an a-pointer prime, because the next prime (64711159) can be obtained adding 64711133 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48413764 + 16297369 = 6958^2 + 4037^2 .

It is a cyclic number.

It is not a de Polignac number, because 64711133 - 2¹² = 64707037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64711123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32355566 + 32355567.

It is an arithmetic number, because the mean of its divisors is an integer number (32355567).

Almost surely, 2^64711133 is an apocalyptic number.

It is an amenable number.

64711133 is a deficient number, since it is larger than the sum of its proper divisors (1).

64711133 is an equidigital number, since it uses as much as digits as its factorization.

64711133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 64711133 is about 8044.3230293170. The cubic root of 64711133 is about 401.4760734015.

Adding to 64711133 its reverse (33111746), we get a palindrome (97822879).

The spelling of 64711133 in words is "sixty-four million, seven hundred eleven thousand, one hundred thirty-three".