64189351 has 2 divisors, whose sum is σ = 64189352. Its totient is φ = 64189350.

The previous prime is 64189309. The next prime is 64189369. The reversal of 64189351 is 15398146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64189351 - 2¹⁷ = 64058279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64189351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64109351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32094675 + 32094676.

It is an arithmetic number, because the mean of its divisors is an integer number (32094676).

Almost surely, 2^64189351 is an apocalyptic number.

64189351 is a deficient number, since it is larger than the sum of its proper divisors (1).

64189351 is an equidigital number, since it uses as much as digits as its factorization.

64189351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 64189351 is about 8011.8256970556. The cubic root of 64189351 is about 400.3940928496.

The spelling of 64189351 in words is "sixty-four million, one hundred eighty-nine thousand, three hundred fifty-one".