213605650 has 12 divisors (see below), whose sum is σ = 397306602. Its totient is φ = 85442240.

The previous prime is 213605641. The next prime is 213605653. The reversal of 213605650 is 56506312.

It can be written as a sum of positive squares in 3 ways, for example, as 123943689 + 89661961 = 11133^2 + 9469^2 .

It is not an unprimeable number, because it can be changed into a prime (213605653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2136007 + ... + 2136106.

Almost surely, 2^213605650 is an apocalyptic number.

213605650 is a deficient number, since it is larger than the sum of its proper divisors (183700952).

213605650 is a wasteful number, since it uses less digits than its factorization.

213605650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4272125 (or 4272120 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 213605650 is about 14615.2540176351. The cubic root of 213605650 is about 597.7747666895.

The spelling of 213605650 in words is "two hundred thirteen million, six hundred five thousand, six hundred fifty".