206622541 has 8 divisors (see below), whose sum is σ = 213386264. Its totient is φ = 199920960.

The previous prime is 206622529. The next prime is 206622551. The reversal of 206622541 is 145226602.

206622541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 585225 + 206037316 = 765^2 + 14354^2 .

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 206622541 - 2⁷ = 206622413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206622551) 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, 8730 + ... + 22123.

It is an arithmetic number, because the mean of its divisors is an integer number (26673283).

Almost surely, 2^206622541 is an apocalyptic number.

It is an amenable number.

206622541 is a deficient number, since it is larger than the sum of its proper divisors (6763723).

206622541 is a wasteful number, since it uses less digits than its factorization.

206622541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31071.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 206622541 is about 14374.3709775419. The cubic root of 206622541 is about 591.1883937438.

The spelling of 206622541 in words is "two hundred six million, six hundred twenty-two thousand, five hundred forty-one".