205234469 has 4 divisors (see below), whose sum is σ = 223892160. Its totient is φ = 186576780.

The previous prime is 205234459. The next prime is 205234481. The reversal of 205234469 is 964432502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205234469 - 2⁸ = 205234213 is a prime.

It is a super-2 number, since 2×205234469² = 84242374531423922, 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 (205234429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9328829 + ... + 9328850.

It is an arithmetic number, because the mean of its divisors is an integer number (55973040).

Almost surely, 2^205234469 is an apocalyptic number.

It is an amenable number.

205234469 is a deficient number, since it is larger than the sum of its proper divisors (18657691).

205234469 is a wasteful number, since it uses less digits than its factorization.

205234469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18657690.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 205234469 is about 14326.0067360029. The cubic root of 205234469 is about 589.8615676369.

The spelling of 205234469 in words is "two hundred five million, two hundred thirty-four thousand, four hundred sixty-nine".