64133845 has 16 divisors (see below), whose sum is σ = 78382080. Its totient is φ = 50368384.

The previous prime is 64133833. The next prime is 64133863. The reversal of 64133845 is 54833146.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64133845 - 2¹³ = 64125653 is a prime.

It is a super-2 number, since 2×64133845² = 8226300148968050, 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 64133845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73884 + ... + 74746.

It is an arithmetic number, because the mean of its divisors is an integer number (4898880).

Almost surely, 2^64133845 is an apocalyptic number.

It is an amenable number.

64133845 is a deficient number, since it is larger than the sum of its proper divisors (14248235).

64133845 is a wasteful number, since it uses less digits than its factorization.

64133845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its digits is 34560, while the sum is 34.

The square root of 64133845 is about 8008.3609434141. The cubic root of 64133845 is about 400.2786495909.

The spelling of 64133845 in words is "sixty-four million, one hundred thirty-three thousand, eight hundred forty-five".