64512135 has 12 divisors (see below), whose sum is σ = 111821112. Its totient is φ = 34406448.

The previous prime is 64512121. The next prime is 64512143. The reversal of 64512135 is 53121546.

64512135 is a `hidden beast` number, since 645 + 1 + 2 + 13 + 5 = 666.

It is not a de Polignac number, because 64512135 - 2¹⁴ = 64495751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64512099 and 64512108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 716757 + ... + 716846.

It is an arithmetic number, because the mean of its divisors is an integer number (9318426).

Almost surely, 2^64512135 is an apocalyptic number.

64512135 is a deficient number, since it is larger than the sum of its proper divisors (47308977).

64512135 is a wasteful number, since it uses less digits than its factorization.

64512135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433614 (or 1433611 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 64512135 is about 8031.9446586739. The cubic root of 64512135 is about 401.0641145569.

The spelling of 64512135 in words is "sixty-four million, five hundred twelve thousand, one hundred thirty-five".