206532001 has 8 divisors (see below), whose sum is σ = 224461160. Its totient is φ = 188894592.

The previous prime is 206531999. The next prime is 206532017. The reversal of 206532001 is 100235602.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14432401 + 192099600 = 3799^2 + 13860^2 .

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 206532001 - 2¹ = 206531999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206532001.

It is not an unprimeable number, because it can be changed into a prime (206532901) 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, 71460 + ... + 74293.

It is an arithmetic number, because the mean of its divisors is an integer number (28057645).

Almost surely, 2^206532001 is an apocalyptic number.

It is an amenable number.

206532001 is a deficient number, since it is larger than the sum of its proper divisors (17929159).

206532001 is a wasteful number, since it uses less digits than its factorization.

206532001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145875.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 206532001 is about 14371.2212772610. The cubic root of 206532001 is about 591.1020301150.

Adding to 206532001 its reverse (100235602), we get a palindrome (306767603).

The spelling of 206532001 in words is "two hundred six million, five hundred thirty-two thousand, one".