205245453 has 8 divisors (see below), whose sum is σ = 312755008. Its totient is φ = 117283104.

The previous prime is 205245449. The next prime is 205245473. The reversal of 205245453 is 354542502.

205245453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 205245453 - 2² = 205245449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205245453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205245473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4886776 + ... + 4886817.

It is an arithmetic number, because the mean of its divisors is an integer number (39094376).

Almost surely, 2^205245453 is an apocalyptic number.

It is an amenable number.

205245453 is a deficient number, since it is larger than the sum of its proper divisors (107509555).

205245453 is an equidigital number, since it uses as much as digits as its factorization.

205245453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773603.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 205245453 is about 14326.3900896213. The cubic root of 205245453 is about 589.8720904370.

Adding to 205245453 its reverse (354542502), we get a palindrome (559787955).

The spelling of 205245453 in words is "two hundred five million, two hundred forty-five thousand, four hundred fifty-three".