206341491 has 8 divisors (see below), whose sum is σ = 275342544. Its totient is φ = 137450720.

The previous prime is 206341483. The next prime is 206341493. The reversal of 206341491 is 194143602.

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 206341491 - 2³ = 206341483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206341493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23100 + ... + 30761.

It is an arithmetic number, because the mean of its divisors is an integer number (34417818).

Almost surely, 2^206341491 is an apocalyptic number.

206341491 is a deficient number, since it is larger than the sum of its proper divisors (69001053).

206341491 is a wasteful number, since it uses less digits than its factorization.

206341491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55141.

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

The square root of 206341491 is about 14364.5915709428. The cubic root of 206341491 is about 590.9202253746.

The spelling of 206341491 in words is "two hundred six million, three hundred forty-one thousand, four hundred ninety-one".