123065205 has 16 divisors (see below), whose sum is σ = 200620800. Its totient is φ = 64395968.

The previous prime is 123065197. The next prime is 123065213. The reversal of 123065205 is 502560321.

It is an interprime number because it is at equal distance from previous prime (123065197) and next prime (123065213).

It is a cyclic number.

It is not a de Polignac number, because 123065205 - 2³ = 123065197 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76605 + ... + 78194.

It is an arithmetic number, because the mean of its divisors is an integer number (12538800).

Almost surely, 2^123065205 is an apocalyptic number.

123065205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123065205 is a deficient number, since it is larger than the sum of its proper divisors (77555595).

123065205 is a wasteful number, since it uses less digits than its factorization.

123065205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154860.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 123065205 is about 11093.4757853434. The cubic root of 123065205 is about 497.4068477057.

The spelling of 123065205 in words is "one hundred twenty-three million, sixty-five thousand, two hundred five".