64018534 has 16 divisors (see below), whose sum is σ = 100045440. Its totient is φ = 30689280.

The previous prime is 64018531. The next prime is 64018571. The reversal of 64018534 is 43581046.

It is a happy number.

64018534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 64018496 and 64018505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64018531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2022 + ... + 11494.

It is an arithmetic number, because the mean of its divisors is an integer number (6252840).

Almost surely, 2^64018534 is an apocalyptic number.

64018534 is a deficient number, since it is larger than the sum of its proper divisors (36026906).

64018534 is a wasteful number, since it uses less digits than its factorization.

64018534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 64018534 is about 8001.1582911476. The cubic root of 64018534 is about 400.0386087733.

The spelling of 64018534 in words is "sixty-four million, eighteen thousand, five hundred thirty-four".