205157365 has 12 divisors (see below), whose sum is σ = 286383276. Its totient is φ = 140679168.

The previous prime is 205157353. The next prime is 205157369. The reversal of 205157365 is 563751502.

It can be written as a sum of positive squares in 2 ways, for example, as 53202436 + 151954929 = 7294^2 + 12327^2 .

It is not a de Polignac number, because 205157365 - 2⁵ = 205157333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205157365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205157369) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 418444 + ... + 418933.

It is an arithmetic number, because the mean of its divisors is an integer number (23865273).

Almost surely, 2^205157365 is an apocalyptic number.

It is an amenable number.

205157365 is a deficient number, since it is larger than the sum of its proper divisors (81225911).

205157365 is an equidigital number, since it uses as much as digits as its factorization.

205157365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837396 (or 837389 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 205157365 is about 14323.3154332368. The cubic root of 205157365 is about 589.7876905355.

The spelling of 205157365 in words is "two hundred five million, one hundred fifty-seven thousand, three hundred sixty-five".