64534128 has 20 divisors (see below), whose sum is σ = 166713288. Its totient is φ = 21511360.

The previous prime is 64534111. The next prime is 64534147. The reversal of 64534128 is 82143546.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672183 + ... + 672278.

Almost surely, 2^64534128 is an apocalyptic number.

It is an amenable number.

64534128 is an abundant number, since it is smaller than the sum of its proper divisors (102179160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64534128 is a wasteful number, since it uses less digits than its factorization.

64534128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344472 (or 1344466 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 64534128 is about 8033.3136375969. The cubic root of 64534128 is about 401.1096853161.

The spelling of 64534128 in words is "sixty-four million, five hundred thirty-four thousand, one hundred twenty-eight".