205052031 has 12 divisors (see below), whose sum is σ = 297069552. Its totient is φ = 136293696.

The previous prime is 205051997. The next prime is 205052033. The reversal of 205052031 is 130250502.

It is a happy number.

It is not a de Polignac number, because 205052031 - 2⁶ = 205051967 is a prime.

It is a super-2 number, since 2×205052031² = 84092670834449922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 205051995 and 205052013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205052033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30771 + ... + 36836.

It is an arithmetic number, because the mean of its divisors is an integer number (24755796).

Almost surely, 2^205052031 is an apocalyptic number.

205052031 is a deficient number, since it is larger than the sum of its proper divisors (92017521).

205052031 is a wasteful number, since it uses less digits than its factorization.

205052031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67950 (or 67947 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 205052031 is about 14319.6379493338. The cubic root of 205052031 is about 589.6867349725.

The spelling of 205052031 in words is "two hundred five million, fifty-two thousand, thirty-one".