206246413 has 4 divisors (see below), whose sum is σ = 206980668. Its totient is φ = 205512160.

The previous prime is 206246407. The next prime is 206246419. The reversal of 206246413 is 314642602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 314642602 = 2 ⋅157321301.

It is an interprime number because it is at equal distance from previous prime (206246407) and next prime (206246419).

It can be written as a sum of positive squares in 2 ways, for example, as 143472484 + 62773929 = 11978^2 + 7923^2 .

It is a de Polignac number, because none of the positive numbers 2^k-206246413 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 (206246419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366706 + ... + 367267.

It is an arithmetic number, because the mean of its divisors is an integer number (51745167).

Almost surely, 2^206246413 is an apocalyptic number.

It is an amenable number.

206246413 is a deficient number, since it is larger than the sum of its proper divisors (734255).

206246413 is an equidigital number, since it uses as much as digits as its factorization.

206246413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734254.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 206246413 is about 14361.2817324917. The cubic root of 206246413 is about 590.8294500543.

The spelling of 206246413 in words is "two hundred six million, two hundred forty-six thousand, four hundred thirteen".