205140302 has 32 divisors (see below), whose sum is σ = 333637920. Its totient is φ = 94279680.

The previous prime is 205140301. The next prime is 205140311. The reversal of 205140302 is 203041502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205140301) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 549788 + ... + 550160.

It is an arithmetic number, because the mean of its divisors is an integer number (10426185).

Almost surely, 2^205140302 is an apocalyptic number.

205140302 is a deficient number, since it is larger than the sum of its proper divisors (128497618).

205140302 is a wasteful number, since it uses less digits than its factorization.

205140302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 205140302 is about 14322.7197836165. The cubic root of 205140302 is about 589.7713391421.

Adding to 205140302 its reverse (203041502), we get a palindrome (408181804).

The spelling of 205140302 in words is "two hundred five million, one hundred forty thousand, three hundred two".