64045191 has 16 divisors (see below), whose sum is σ = 97784064. Its totient is φ = 36525504.

The previous prime is 64045183. The next prime is 64045193. The reversal of 64045191 is 19154046.

It is a happy number.

It is not a de Polignac number, because 64045191 - 2³ = 64045183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64045193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9115 + ... + 14531.

It is an arithmetic number, because the mean of its divisors is an integer number (6111504).

Almost surely, 2^64045191 is an apocalyptic number.

64045191 is a deficient number, since it is larger than the sum of its proper divisors (33738873).

64045191 is a wasteful number, since it uses less digits than its factorization.

64045191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5990.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 64045191 is about 8002.8239390855. The cubic root of 64045191 is about 400.0941257658.

The spelling of 64045191 in words is "sixty-four million, forty-five thousand, one hundred ninety-one".