205306070 has 16 divisors (see below), whose sum is σ = 369962208. Its totient is φ = 82031040.

The previous prime is 205306043. The next prime is 205306097. The reversal of 205306070 is 70603502.

It is an interprime number because it is at equal distance from previous prime (205306043) and next prime (205306097).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586 + ... + 20325.

It is an arithmetic number, because the mean of its divisors is an integer number (23122638).

Almost surely, 2^205306070 is an apocalyptic number.

205306070 is a deficient number, since it is larger than the sum of its proper divisors (164656138).

205306070 is a wasteful number, since it uses less digits than its factorization.

205306070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22855.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 205306070 is about 14328.5055047622. The cubic root of 205306070 is about 589.9301554781.

Adding to 205306070 its reverse (70603502), we get a palindrome (275909572).

The spelling of 205306070 in words is "two hundred five million, three hundred six thousand, seventy".