206457361 has 8 divisors (see below), whose sum is σ = 235018944. Its totient is φ = 179527920.

The previous prime is 206457353. The next prime is 206457397. The reversal of 206457361 is 163754602.

It is a happy number.

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

It is not a de Polignac number, because 206457361 - 2³ = 206457353 is a prime.

It is a super-2 number, since 2×206457361² = 85249283822168642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206457301) 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 7 ways as a sum of consecutive naturals, for example, 407766 + ... + 408271.

It is an arithmetic number, because the mean of its divisors is an integer number (29377368).

Almost surely, 2^206457361 is an apocalyptic number.

It is an amenable number.

206457361 is a deficient number, since it is larger than the sum of its proper divisors (28561583).

206457361 is a wasteful number, since it uses less digits than its factorization.

206457361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816071.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 206457361 is about 14368.6241860521. The cubic root of 206457361 is about 591.0308140785.

The spelling of 206457361 in words is "two hundred six million, four hundred fifty-seven thousand, three hundred sixty-one".