205413411 has 8 divisors (see below), whose sum is σ = 313010944. Its totient is φ = 117379080.

The previous prime is 205413407. The next prime is 205413457. The reversal of 205413411 is 114314502.

205413411 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 205413411 - 2² = 205413407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9781591 = 205413411 / (2 + 0 + 5 + 4 + 1 + 3 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205413211) 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, 4890775 + ... + 4890816.

It is an arithmetic number, because the mean of its divisors is an integer number (39126368).

Almost surely, 2^205413411 is an apocalyptic number.

205413411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

205413411 is a deficient number, since it is larger than the sum of its proper divisors (107597533).

205413411 is an equidigital number, since it uses as much as digits as its factorization.

205413411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9781601.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 205413411 is about 14332.2507304331. The cubic root of 205413411 is about 590.0329494191.

Adding to 205413411 its reverse (114314502), we get a palindrome (319727913).

The spelling of 205413411 in words is "two hundred five million, four hundred thirteen thousand, four hundred eleven".