64047145 has 8 divisors (see below), whose sum is σ = 77129856. Its totient is φ = 51055536.

The previous prime is 64047121. The next prime is 64047173. The reversal of 64047145 is 54174046.

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

It is a cyclic number.

It is not a de Polignac number, because 64047145 - 2¹¹ = 64045097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 21217 + ... + 24046.

It is an arithmetic number, because the mean of its divisors is an integer number (9641232).

Almost surely, 2^64047145 is an apocalyptic number.

It is an amenable number.

64047145 is a deficient number, since it is larger than the sum of its proper divisors (13082711).

64047145 is a wasteful number, since it uses less digits than its factorization.

64047145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45551.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 64047145 is about 8002.9460200604. The cubic root of 64047145 is about 400.0981946426.

The spelling of 64047145 in words is "sixty-four million, forty-seven thousand, one hundred forty-five".