205116442 has 8 divisors (see below), whose sum is σ = 308147796. Its totient is φ = 102400512.

The previous prime is 205116427. The next prime is 205116463. The reversal of 205116442 is 244611502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 194351481 + 10764961 = 13941^2 + 3281^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 77223 + ... + 79834.

Almost surely, 2^205116442 is an apocalyptic number.

205116442 is a deficient number, since it is larger than the sum of its proper divisors (103031354).

205116442 is a wasteful number, since it uses less digits than its factorization.

205116442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157712.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 205116442 is about 14321.8868170364. The cubic root of 205116442 is about 589.7484726947.

Adding to 205116442 its reverse (244611502), we get a palindrome (449727944).

The spelling of 205116442 in words is "two hundred five million, one hundred sixteen thousand, four hundred forty-two".