205214399 has 8 divisors (see below), whose sum is σ = 221207952. Its totient is φ = 189250560.

The previous prime is 205214377. The next prime is 205214407. The reversal of 205214399 is 993412502.

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

It is a cyclic number.

It is not a de Polignac number, because 205214399 - 2¹² = 205210303 is a prime.

It is a super-2 number, since 2×205214399² = 84225899113862402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205214329) 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, 8144 + ... + 21834.

It is an arithmetic number, because the mean of its divisors is an integer number (27650994).

Almost surely, 2^205214399 is an apocalyptic number.

205214399 is a deficient number, since it is larger than the sum of its proper divisors (15993553).

205214399 is a wasteful number, since it uses less digits than its factorization.

205214399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14857.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 205214399 is about 14325.3062445450. The cubic root of 205214399 is about 589.8423393730.

The spelling of 205214399 in words is "two hundred five million, two hundred fourteen thousand, three hundred ninety-nine".