213505010 has 8 divisors (see below), whose sum is σ = 384309036. Its totient is φ = 85402000.

The previous prime is 213505003. The next prime is 213505013. The reversal of 213505010 is 10505312.

It can be written as a sum of positive squares in 2 ways, for example, as 206698129 + 6806881 = 14377^2 + 2609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213505010.

It is not an unprimeable number, because it can be changed into a prime (213505013) 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 3 ways as a sum of consecutive naturals, for example, 10675241 + ... + 10675260.

Almost surely, 2^213505010 is an apocalyptic number.

213505010 is a deficient number, since it is larger than the sum of its proper divisors (170804026).

213505010 is a wasteful number, since it uses less digits than its factorization.

213505010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21350508.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 213505010 is about 14611.8106338674. The cubic root of 213505010 is about 597.6808716964.

The spelling of 213505010 in words is "two hundred thirteen million, five hundred five thousand, ten".