3227545645 has 4 divisors (see below), whose sum is σ = 3873054780. Its totient is φ = 2582036512.

The previous prime is 3227545639. The next prime is 3227545649. The reversal of 3227545645 is 5465457223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 671535396 + 2556010249 = 25914^2 + 50557^2 .

It is a cyclic number.

It is not a de Polignac number, because 3227545645 - 2⁵ = 3227545613 is a prime.

It is a super-3 number, since 3×3227545645³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3227545649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322754560 + ... + 322754569.

It is an arithmetic number, because the mean of its divisors is an integer number (968263695).

Almost surely, 2^3227545645 is an apocalyptic number.

It is an amenable number.

3227545645 is a deficient number, since it is larger than the sum of its proper divisors (645509135).

3227545645 is an equidigital number, since it uses as much as digits as its factorization.

3227545645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645509134.

The product of its digits is 1008000, while the sum is 43.

The square root of 3227545645 is about 56811.4921912812. The cubic root of 3227545645 is about 1477.8288174039.

The spelling of 3227545645 in words is "three billion, two hundred twenty-seven million, five hundred forty-five thousand, six hundred forty-five".