64569141 has 24 divisors (see below), whose sum is σ = 114791040. Its totient is φ = 34058016.

The previous prime is 64569139. The next prime is 64569143. The reversal of 64569141 is 14196546.

64569141 is a `hidden beast` number, since 645 + 6 + 9 + 1 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (64569139) and next prime (64569143).

It is not a de Polignac number, because 64569141 - 2¹ = 64569139 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64569096 and 64569105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64569143) 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 in 23 ways as a sum of consecutive naturals, for example, 38601 + ... + 40238.

It is an arithmetic number, because the mean of its divisors is an integer number (4782960).

Almost surely, 2^64569141 is an apocalyptic number.

It is an amenable number.

64569141 is a deficient number, since it is larger than the sum of its proper divisors (50221899).

64569141 is a wasteful number, since it uses less digits than its factorization.

64569141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78865 (or 78862 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 64569141 is about 8035.4925797987. The cubic root of 64569141 is about 401.1822129060.

The spelling of 64569141 in words is "sixty-four million, five hundred sixty-nine thousand, one hundred forty-one".