205130736 has 30 divisors (see below), whose sum is σ = 574081560. Its totient is φ = 68376864.

The previous prime is 205130729. The next prime is 205130741. The reversal of 205130736 is 637031502.

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 5 ways as a sum of consecutive naturals, for example, 712116 + ... + 712403.

It is an arithmetic number, because the mean of its divisors is an integer number (19136052).

Almost surely, 2^205130736 is an apocalyptic number.

It is an amenable number.

205130736 is an abundant number, since it is smaller than the sum of its proper divisors (368950824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205130736 is a wasteful number, since it uses less digits than its factorization.

205130736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424533 (or 1424524 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 205130736 is about 14322.3858347693. The cubic root of 205130736 is about 589.7621716922.

The spelling of 205130736 in words is "two hundred five million, one hundred thirty thousand, seven hundred thirty-six".