213475305 has 24 divisors (see below), whose sum is σ = 357069888. Its totient is φ = 108899296.

The previous prime is 213475303. The next prime is 213475309. The reversal of 213475305 is 503574312.

It is not a de Polignac number, because 213475305 - 2¹ = 213475303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213475303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5517 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (14877912).

Almost surely, 2^213475305 is an apocalyptic number.

It is an amenable number.

213475305 is a deficient number, since it is larger than the sum of its proper divisors (143594583).

213475305 is a wasteful number, since it uses less digits than its factorization.

213475305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26957 (or 26934 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 213475305 is about 14610.7941262616. The cubic root of 213475305 is about 597.6531519195.

The spelling of 213475305 in words is "two hundred thirteen million, four hundred seventy-five thousand, three hundred five".