206070775 has 12 divisors (see below), whose sum is σ = 259860600. Its totient is φ = 162061280.

The previous prime is 206070773. The next prime is 206070779. The reversal of 206070775 is 577070602.

It is not a de Polignac number, because 206070775 - 2¹ = 206070773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206070775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206070773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68380 + ... + 71329.

It is an arithmetic number, because the mean of its divisors is an integer number (21655050).

Almost surely, 2^206070775 is an apocalyptic number.

206070775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

206070775 is a deficient number, since it is larger than the sum of its proper divisors (53789825).

206070775 is a wasteful number, since it uses less digits than its factorization.

206070775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139778 (or 139773 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 206070775 is about 14355.1654466258. The cubic root of 206070775 is about 590.6616870169.

The spelling of 206070775 in words is "two hundred six million, seventy thousand, seven hundred seventy-five".