1201705165 has 8 divisors (see below), whose sum is σ = 1472728320. Its totient is φ = 940909392.

The previous prime is 1201705159. The next prime is 1201705181. The reversal of 1201705165 is 5615071021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201705165 - 2³ = 1201705157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2556585 + ... + 2557054.

It is an arithmetic number, because the mean of its divisors is an integer number (184091040).

Almost surely, 2^1201705165 is an apocalyptic number.

It is an amenable number.

1201705165 is a deficient number, since it is larger than the sum of its proper divisors (271023155).

1201705165 is an equidigital number, since it uses as much as digits as its factorization.

1201705165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113691.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 1201705165 is about 34665.6193511669. The cubic root of 1201705165 is about 1063.1616665731.

Adding to 1201705165 its reverse (5615071021), we get a palindrome (6816776186).

The spelling of 1201705165 in words is "one billion, two hundred one million, seven hundred five thousand, one hundred sixty-five".