64132291 has 2 divisors, whose sum is σ = 64132292. Its totient is φ = 64132290.

The previous prime is 64132247. The next prime is 64132297. The reversal of 64132291 is 19223146.

64132291 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 is a cyclic number.

It is not a de Polignac number, because 64132291 - 2⁹ = 64131779 is a prime.

It is a super-2 number, since 2×64132291² = 8225901497817362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64132297) 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, 32066145 + 32066146.

It is an arithmetic number, because the mean of its divisors is an integer number (32066146).

Almost surely, 2^64132291 is an apocalyptic number.

64132291 is a deficient number, since it is larger than the sum of its proper divisors (1).

64132291 is an equidigital number, since it uses as much as digits as its factorization.

64132291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 64132291 is about 8008.2639192274. The cubic root of 64132291 is about 400.2754165708.

It can be divided in two parts, 64 and 132291, that added together give a triangular number (132355 = T₅₁₄).

The spelling of 64132291 in words is "sixty-four million, one hundred thirty-two thousand, two hundred ninety-one".