205464361 has 2 divisors, whose sum is σ = 205464362. Its totient is φ = 205464360.

The previous prime is 205464323. The next prime is 205464443. The reversal of 205464361 is 163464502.

205464361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142563600 + 62900761 = 11940^2 + 7931^2 .

It is a cyclic number.

It is not a de Polignac number, because 205464361 - 2¹⁵ = 205431593 is a prime.

It is a super-2 number, since 2×205464361² = 84431207282276642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (205465361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102732180 + 102732181.

It is an arithmetic number, because the mean of its divisors is an integer number (102732181).

Almost surely, 2^205464361 is an apocalyptic number.

It is an amenable number.

205464361 is a deficient number, since it is larger than the sum of its proper divisors (1).

205464361 is an equidigital number, since it uses as much as digits as its factorization.

205464361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 205464361 is about 14334.0280800618. The cubic root of 205464361 is about 590.0817285997.

The spelling of 205464361 in words is "two hundred five million, four hundred sixty-four thousand, three hundred sixty-one".