205492461 has 4 divisors (see below), whose sum is σ = 273989952. Its totient is φ = 136994972.

The previous prime is 205492411. The next prime is 205492499. The reversal of 205492461 is 164294502.

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 205492461 - 2⁷ = 205492333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205492411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34248741 + ... + 34248746.

It is an arithmetic number, because the mean of its divisors is an integer number (68497488).

Almost surely, 2^205492461 is an apocalyptic number.

It is an amenable number.

205492461 is a deficient number, since it is larger than the sum of its proper divisors (68497491).

205492461 is an equidigital number, since it uses as much as digits as its factorization.

205492461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68497490.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 205492461 is about 14335.0082315986. The cubic root of 205492461 is about 590.1086278969.

The spelling of 205492461 in words is "two hundred five million, four hundred ninety-two thousand, four hundred sixty-one".