3105717121 has 8 divisors (see below), whose sum is σ = 3350266920. Its totient is φ = 2861974272.

The previous prime is 3105717119. The next prime is 3105717149. The reversal of 3105717121 is 1217175013.

It can be written as a sum of positive squares in 4 ways, for example, as 83466496 + 3022250625 = 9136^2 + 54975^2 .

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 3105717121 - 2¹ = 3105717119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3105717121.

It is not an unprimeable number, because it can be changed into a prime (3105717221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193726 + ... + 209143.

It is an arithmetic number, because the mean of its divisors is an integer number (418783365).

Almost surely, 2^3105717121 is an apocalyptic number.

It is an amenable number.

3105717121 is a deficient number, since it is larger than the sum of its proper divisors (244549799).

3105717121 is a wasteful number, since it uses less digits than its factorization.

3105717121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403475.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 3105717121 is about 55728.9612409921. The cubic root of 3105717121 is about 1458.9955437057.

The spelling of 3105717121 in words is "three billion, one hundred five million, seven hundred seventeen thousand, one hundred twenty-one".