405645163 has 8 divisors (see below), whose sum is σ = 505739520. Its totient is φ = 316087080.

The previous prime is 405645161. The next prime is 405645167. The reversal of 405645163 is 361546504.

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 405645163 - 2¹ = 405645161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405645161) 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, 2633983 + ... + 2634136.

It is an arithmetic number, because the mean of its divisors is an integer number (63217440).

Almost surely, 2^405645163 is an apocalyptic number.

405645163 is a deficient number, since it is larger than the sum of its proper divisors (100094357).

405645163 is a wasteful number, since it uses less digits than its factorization.

405645163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5268137.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 405645163 is about 20140.6346225733. The cubic root of 405645163 is about 740.2562802377.

The spelling of 405645163 in words is "four hundred five million, six hundred forty-five thousand, one hundred sixty-three".