213505363 has 16 divisors (see below), whose sum is σ = 234549216. Its totient is φ = 193536000.

The previous prime is 213505361. The next prime is 213505367. The reversal of 213505363 is 363505312.

It is a cyclic number.

It is not a de Polignac number, because 213505363 - 2¹ = 213505361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213505361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51363 + ... + 55363.

It is an arithmetic number, because the mean of its divisors is an integer number (14659326).

Almost surely, 2^213505363 is an apocalyptic number.

213505363 is a deficient number, since it is larger than the sum of its proper divisors (21043853).

213505363 is a wasteful number, since it uses less digits than its factorization.

213505363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 213505363 is about 14611.8227131320. The cubic root of 213505363 is about 597.6812010895.

The spelling of 213505363 in words is "two hundred thirteen million, five hundred five thousand, three hundred sixty-three".