205612412 has 12 divisors (see below), whose sum is σ = 368189976. Its totient is φ = 100415280.

The previous prime is 205612397. The next prime is 205612439. The reversal of 205612412 is 214216502.

It is a happy number.

It is a congruent number.

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, 597539 + ... + 597882.

It is an arithmetic number, because the mean of its divisors is an integer number (30682498).

Almost surely, 2^205612412 is an apocalyptic number.

It is an amenable number.

205612412 is a deficient number, since it is larger than the sum of its proper divisors (162577564).

205612412 is a wasteful number, since it uses less digits than its factorization.

205612412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195468 (or 1195466 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 205612412 is about 14339.1914695355. The cubic root of 205612412 is about 590.2234258661.

Adding to 205612412 its reverse (214216502), we get a palindrome (419828914).

The spelling of 205612412 in words is "two hundred five million, six hundred twelve thousand, four hundred twelve".