213660573 has 16 divisors (see below), whose sum is σ = 344730240. Its totient is φ = 114909696.

The previous prime is 213660571. The next prime is 213660583. The reversal of 213660573 is 375066312.

It is not a de Polignac number, because 213660573 - 2¹ = 213660571 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213660571) 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, 298888 + ... + 299601.

It is an arithmetic number, because the mean of its divisors is an integer number (21545640).

Almost surely, 2^213660573 is an apocalyptic number.

It is an amenable number.

213660573 is a deficient number, since it is larger than the sum of its proper divisors (131069667).

213660573 is a wasteful number, since it uses less digits than its factorization.

213660573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598516.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 213660573 is about 14617.1328583960. The cubic root of 213660573 is about 597.8259962489.

The spelling of 213660573 in words is "two hundred thirteen million, six hundred sixty thousand, five hundred seventy-three".