206520141 has 8 divisors (see below), whose sum is σ = 278846080. Its totient is φ = 135937152.

The previous prime is 206520121. The next prime is 206520143. The reversal of 206520141 is 141025602.

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

It is a de Polignac number, because none of the positive numbers 2^k-206520141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206520143) 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, 435460 + ... + 435933.

It is an arithmetic number, because the mean of its divisors is an integer number (34855760).

Almost surely, 2^206520141 is an apocalyptic number.

It is an amenable number.

206520141 is a deficient number, since it is larger than the sum of its proper divisors (72325939).

206520141 is an equidigital number, since it uses as much as digits as its factorization.

206520141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871475.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 206520141 is about 14370.8086411308. The cubic root of 206520141 is about 591.0907153159.

Adding to 206520141 its reverse (141025602), we get a palindrome (347545743).

The spelling of 206520141 in words is "two hundred six million, five hundred twenty thousand, one hundred forty-one".