213263305 has 16 divisors (see below), whose sum is σ = 260055360. Its totient is φ = 167873472.

The previous prime is 213263287. The next prime is 213263311. The reversal of 213263305 is 503362312.

It is a happy number.

213263305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213263305 - 2⁹ = 213262793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213263305.

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, 82726 + ... + 85264.

It is an arithmetic number, because the mean of its divisors is an integer number (16253460).

Almost surely, 2^213263305 is an apocalyptic number.

It is an amenable number.

213263305 is a deficient number, since it is larger than the sum of its proper divisors (46792055).

213263305 is a wasteful number, since it uses less digits than its factorization.

213263305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 213263305 is about 14603.5374139282. The cubic root of 213263305 is about 597.4552454472.

The spelling of 213263305 in words is "two hundred thirteen million, two hundred sixty-three thousand, three hundred five".