205086357 has 16 divisors (see below), whose sum is σ = 347236480. Its totient is φ = 117192096.

The previous prime is 205086353. The next prime is 205086373. The reversal of 205086357 is 753680502.

It is not a de Polignac number, because 205086357 - 2² = 205086353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205086353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 542368 + ... + 542745.

It is an arithmetic number, because the mean of its divisors is an integer number (21702280).

Almost surely, 2^205086357 is an apocalyptic number.

205086357 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

205086357 is a deficient number, since it is larger than the sum of its proper divisors (142150123).

205086357 is a wasteful number, since it uses less digits than its factorization.

205086357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085129 (or 1085123 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 205086357 is about 14320.8364630003. The cubic root of 205086357 is about 589.7196379344.

The spelling of 205086357 in words is "two hundred five million, eighty-six thousand, three hundred fifty-seven".