206531061 has 8 divisors (see below), whose sum is σ = 300408864. Its totient is φ = 125170320.

The previous prime is 206531029. The next prime is 206531081. The reversal of 206531061 is 160135602.

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

It is not a de Polignac number, because 206531061 - 2⁵ = 206531029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206531081) 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, 3129226 + ... + 3129291.

It is an arithmetic number, because the mean of its divisors is an integer number (37551108).

Almost surely, 2^206531061 is an apocalyptic number.

It is an amenable number.

206531061 is a deficient number, since it is larger than the sum of its proper divisors (93877803).

206531061 is a wasteful number, since it uses less digits than its factorization.

206531061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258531.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 206531061 is about 14371.1885729747. The cubic root of 206531061 is about 591.1011333423.

Adding to 206531061 its reverse (160135602), we get a palindrome (366666663).

The spelling of 206531061 in words is "two hundred six million, five hundred thirty-one thousand, sixty-one".