205982974 has 4 divisors (see below), whose sum is σ = 308974464. Its totient is φ = 102991486.

The previous prime is 205982947. The next prime is 205982993. The reversal of 205982974 is 479289502.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51495742 + ... + 51495745.

It is an arithmetic number, because the mean of its divisors is an integer number (77243616).

Almost surely, 2^205982974 is an apocalyptic number.

205982974 is a deficient number, since it is larger than the sum of its proper divisors (102991490).

205982974 is a wasteful number, since it uses less digits than its factorization.

205982974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102991489.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 205982974 is about 14352.1069533362. The cubic root of 205982974 is about 590.5777869523.

The spelling of 205982974 in words is "two hundred five million, nine hundred eighty-two thousand, nine hundred seventy-four".