205431441 has 8 divisors (see below), whose sum is σ = 274245504. Its totient is φ = 136785840.

The previous prime is 205431433. The next prime is 205431461. The reversal of 205431441 is 144134502.

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

It is not a de Polignac number, because 205431441 - 2³ = 205431433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205431431) 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 7 ways as a sum of consecutive naturals, for example, 39241 + ... + 44166.

It is an arithmetic number, because the mean of its divisors is an integer number (34280688).

Almost surely, 2^205431441 is an apocalyptic number.

It is an amenable number.

205431441 is a deficient number, since it is larger than the sum of its proper divisors (68814063).

205431441 is an equidigital number, since it uses as much as digits as its factorization.

205431441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84231.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 205431441 is about 14332.8797176283. The cubic root of 205431441 is about 590.0502121395.

Adding to 205431441 its reverse (144134502), we get a palindrome (349565943).

The spelling of 205431441 in words is "two hundred five million, four hundred thirty-one thousand, four hundred forty-one".