205463131 has 8 divisors (see below), whose sum is σ = 216414720. Its totient is φ = 194525352.

The previous prime is 205463119. The next prime is 205463161. The reversal of 205463131 is 131364502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205463131 - 2¹⁹ = 204938843 is a prime.

It is a super-2 number, since 2×205463131² = 84430196400646322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205463096 and 205463105.

It is not an unprimeable number, because it can be changed into a prime (205463161) 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 7 ways as a sum of consecutive naturals, for example, 43806 + ... + 48268.

It is an arithmetic number, because the mean of its divisors is an integer number (27051840).

Almost surely, 2^205463131 is an apocalyptic number.

205463131 is a deficient number, since it is larger than the sum of its proper divisors (10951589).

205463131 is a wasteful number, since it uses less digits than its factorization.

205463131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6905.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 205463131 is about 14333.9851751005. The cubic root of 205463131 is about 590.0805511011.

The spelling of 205463131 in words is "two hundred five million, four hundred sixty-three thousand, one hundred thirty-one".