64045331 has 8 divisors (see below), whose sum is σ = 73244160. Its totient is φ = 54858888.

The previous prime is 64045277. The next prime is 64045343. The reversal of 64045331 is 13354046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-64045331 is a prime.

It is a super-2 number, since 2×64045331² = 8203608845799122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64045331.

It is not an unprimeable number, because it can be changed into a prime (64045391) 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 7 ways as a sum of consecutive naturals, for example, 15260 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (9155520).

Almost surely, 2^64045331 is an apocalyptic number.

64045331 is a deficient number, since it is larger than the sum of its proper divisors (9198829).

64045331 is a wasteful number, since it uses less digits than its factorization.

64045331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 64045331 is about 8002.8326859931. The cubic root of 64045331 is about 400.0944172950.

Adding to 64045331 its reverse (13354046), we get a palindrome (77399377).

The spelling of 64045331 in words is "sixty-four million, forty-five thousand, three hundred thirty-one".