64133149 has 2 divisors, whose sum is σ = 64133150. Its totient is φ = 64133148.

The previous prime is 64133119. The next prime is 64133159. The reversal of 64133149 is 94133146.

64133149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36905625 + 27227524 = 6075^2 + 5218^2 .

It is a cyclic number.

It is not a de Polignac number, because 64133149 - 2⁵ = 64133117 is a prime.

It is a super-2 number, since 2×64133149² = 8226121601312402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64133149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64133119) 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 as a sum of consecutive naturals, namely, 32066574 + 32066575.

It is an arithmetic number, because the mean of its divisors is an integer number (32066575).

Almost surely, 2^64133149 is an apocalyptic number.

It is an amenable number.

64133149 is a deficient number, since it is larger than the sum of its proper divisors (1).

64133149 is an equidigital number, since it uses as much as digits as its factorization.

64133149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 64133149 is about 8008.3174887113. The cubic root of 64133149 is about 400.2772016038.

The spelling of 64133149 in words is "sixty-four million, one hundred thirty-three thousand, one hundred forty-nine".