205462231 has 4 divisors (see below), whose sum is σ = 221267032. Its totient is φ = 189657432.

The previous prime is 205462217. The next prime is 205462241. The reversal of 205462231 is 132264502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205462231 - 2¹¹ = 205460183 is a prime.

It is a super-2 number, since 2×205462231² = 84429456734994722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205462196 and 205462205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205462211) 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, 7902381 + ... + 7902406.

It is an arithmetic number, because the mean of its divisors is an integer number (55316758).

Almost surely, 2^205462231 is an apocalyptic number.

205462231 is a deficient number, since it is larger than the sum of its proper divisors (15804801).

205462231 is a wasteful number, since it uses less digits than its factorization.

205462231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15804800.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 205462231 is about 14333.9537811450. The cubic root of 205462231 is about 590.0796895138.

The spelling of 205462231 in words is "two hundred five million, four hundred sixty-two thousand, two hundred thirty-one".