205253131 has 4 divisors (see below), whose sum is σ = 205334064. Its totient is φ = 205172200.

The previous prime is 205253123. The next prime is 205253141. The reversal of 205253131 is 131352502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 205253131 - 2³ = 205253123 is a prime.

It is a super-2 number, since 2×205253131² = 84257695570606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205253141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36535 + ... + 41776.

It is an arithmetic number, because the mean of its divisors is an integer number (51333516).

Almost surely, 2^205253131 is an apocalyptic number.

205253131 is a deficient number, since it is larger than the sum of its proper divisors (80933).

205253131 is an equidigital number, since it uses as much as digits as its factorization.

205253131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80932.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 205253131 is about 14326.6580541311. The cubic root of 205253131 is about 589.8794458276.

The spelling of 205253131 in words is "two hundred five million, two hundred fifty-three thousand, one hundred thirty-one".