213495530 has 16 divisors (see below), whose sum is σ = 384470280. Its totient is φ = 85358592.

The previous prime is 213495523. The next prime is 213495539. The reversal of 213495530 is 35594312.

It can be written as a sum of positive squares in 4 ways, for example, as 197149681 + 16345849 = 14041^2 + 4043^2 .

It is not an unprimeable number, because it can be changed into a prime (213495539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28322 + ... + 35058.

Almost surely, 2^213495530 is an apocalyptic number.

213495530 is a deficient number, since it is larger than the sum of its proper divisors (170974750).

213495530 is a wasteful number, since it uses less digits than its factorization.

213495530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9913.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 213495530 is about 14611.4862351508. The cubic root of 213495530 is about 597.6720255363.

The spelling of 213495530 in words is "two hundred thirteen million, four hundred ninety-five thousand, five hundred thirty".