206950131 has 12 divisors (see below), whose sum is σ = 299081952. Its totient is φ = 137895696.

The previous prime is 206950127. The next prime is 206950153. The reversal of 206950131 is 131059602.

It is not a de Polignac number, because 206950131 - 2² = 206950127 is a prime.

It is a super-2 number, since 2×206950131² = 85656713441834322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206950095 and 206950104.

It is not an unprimeable number, because it can be changed into a prime (206950171) 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 11 ways as a sum of consecutive naturals, for example, 17325 + ... + 26721.

It is an arithmetic number, because the mean of its divisors is an integer number (24923496).

Almost surely, 2^206950131 is an apocalyptic number.

206950131 is a deficient number, since it is larger than the sum of its proper divisors (92131821).

206950131 is a wasteful number, since it uses less digits than its factorization.

206950131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11850 (or 11847 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 206950131 is about 14385.7613979935. The cubic root of 206950131 is about 591.5006622648.

The spelling of 206950131 in words is "two hundred six million, nine hundred fifty thousand, one hundred thirty-one".