64545733 has 8 divisors (see below), whose sum is σ = 73816640. Its totient is φ = 55287360.

The previous prime is 64545727. The next prime is 64545749. The reversal of 64545733 is 33754546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64545733 - 2¹⁷ = 64414661 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64545692 and 64545701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64545703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14653 + ... + 18541.

It is an arithmetic number, because the mean of its divisors is an integer number (9227080).

Almost surely, 2^64545733 is an apocalyptic number.

It is an amenable number.

64545733 is a deficient number, since it is larger than the sum of its proper divisors (9270907).

64545733 is a wasteful number, since it uses less digits than its factorization.

64545733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6267.

The product of its digits is 151200, while the sum is 37.

The square root of 64545733 is about 8034.0359098027. The cubic root of 64545733 is about 401.1337273697.

The spelling of 64545733 in words is "sixty-four million, five hundred forty-five thousand, seven hundred thirty-three".