206745355 has 8 divisors (see below), whose sum is σ = 256097664. Its totient is φ = 160060800.

The previous prime is 206745349. The next prime is 206745359. The reversal of 206745355 is 553547602.

206745355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 206745355 - 2⁵ = 206745323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206745359) 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, 666766 + ... + 667075.

It is an arithmetic number, because the mean of its divisors is an integer number (32012208).

Almost surely, 2^206745355 is an apocalyptic number.

206745355 is a deficient number, since it is larger than the sum of its proper divisors (49352309).

206745355 is a wasteful number, since it uses less digits than its factorization.

206745355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333877.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 206745355 is about 14378.6423211651. The cubic root of 206745355 is about 591.3055023457.

The spelling of 206745355 in words is "two hundred six million, seven hundred forty-five thousand, three hundred fifty-five".