213605330 has 8 divisors (see below), whose sum is σ = 384489612. Its totient is φ = 85442128.

The previous prime is 213605321. The next prime is 213605341. The reversal of 213605330 is 33506312.

It can be written as a sum of positive squares in 2 ways, for example, as 207907561 + 5697769 = 14419^2 + 2387^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 213605296 and 213605305.

It is an unprimeable number.

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, 10680257 + ... + 10680276.

Almost surely, 2^213605330 is an apocalyptic number.

213605330 is a deficient number, since it is larger than the sum of its proper divisors (170884282).

213605330 is a wasteful number, since it uses less digits than its factorization.

213605330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21360540.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 213605330 is about 14615.2430701648. The cubic root of 213605330 is about 597.7744681830.

The spelling of 213605330 in words is "two hundred thirteen million, six hundred five thousand, three hundred thirty".