1205617652 has 12 divisors (see below), whose sum is σ = 2177890176. Its totient is φ = 583363320.

The previous prime is 1205617649. The next prime is 1205617663. The reversal of 1205617652 is 2567165021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4861238 + ... + 4861485.

It is an arithmetic number, because the mean of its divisors is an integer number (181490848).

Almost surely, 2^1205617652 is an apocalyptic number.

It is an amenable number.

1205617652 is a deficient number, since it is larger than the sum of its proper divisors (972272524).

1205617652 is a wasteful number, since it uses less digits than its factorization.

1205617652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9722758 (or 9722756 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 1205617652 is about 34722.0052992335. The cubic root of 1205617652 is about 1064.3142232940.

The spelling of 1205617652 in words is "one billion, two hundred five million, six hundred seventeen thousand, six hundred fifty-two".