205035131 has 8 divisors (see below), whose sum is σ = 234495744. Its totient is φ = 175617000.

The previous prime is 205035121. The next prime is 205035139. The reversal of 205035131 is 131530502.

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 205035131 - 2¹⁸ = 204772987 is a prime.

It is a super-2 number, since 2×205035131² = 84078809888374322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205035139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506 + ... + 20256.

It is an arithmetic number, because the mean of its divisors is an integer number (29311968).

Almost surely, 2^205035131 is an apocalyptic number.

205035131 is a deficient number, since it is larger than the sum of its proper divisors (29460613).

205035131 is a wasteful number, since it uses less digits than its factorization.

205035131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21241.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 205035131 is about 14319.0478384563. The cubic root of 205035131 is about 589.6705342395.

Adding to 205035131 its reverse (131530502), we get a palindrome (336565633).

The spelling of 205035131 in words is "two hundred five million, thirty-five thousand, one hundred thirty-one".