64133946 has 12 divisors (see below), whose sum is σ = 138956922. Its totient is φ = 21377976.

The previous prime is 64133939. The next prime is 64133957. The reversal of 64133946 is 64933146.

64133946 is a `hidden beast` number, since 641 + 3 + 3 + 9 + 4 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 62583921 + 1550025 = 7911^2 + 1245^2 .

It is a super-2 number, since 2×64133946² = 8226326059061832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64133946.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1781481 + ... + 1781516.

Almost surely, 2^64133946 is an apocalyptic number.

64133946 is an abundant number, since it is smaller than the sum of its proper divisors (74822976).

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

64133946 is a wasteful number, since it uses less digits than its factorization.

64133946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563005 (or 3563002 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 64133946 is about 8008.3672493212. The cubic root of 64133946 is about 400.2788597146.

The spelling of 64133946 in words is "sixty-four million, one hundred thirty-three thousand, nine hundred forty-six".