206944131 has 4 divisors (see below), whose sum is σ = 275925512. Its totient is φ = 137962752.

The previous prime is 206944103. The next prime is 206944151. The reversal of 206944131 is 131449602.

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

It is not a de Polignac number, because 206944131 - 2⁹ = 206943619 is a prime.

It is a super-2 number, since 2×206944131² = 85651746710690322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206944151) 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, 34490686 + ... + 34490691.

It is an arithmetic number, because the mean of its divisors is an integer number (68981378).

Almost surely, 2^206944131 is an apocalyptic number.

206944131 is a deficient number, since it is larger than the sum of its proper divisors (68981381).

206944131 is an equidigital number, since it uses as much as digits as its factorization.

206944131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68981380.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 206944131 is about 14385.5528569464. The cubic root of 206944131 is about 591.4949458502.

The spelling of 206944131 in words is "two hundred six million, nine hundred forty-four thousand, one hundred thirty-one".