3165121543145 has 8 divisors (see below), whose sum is σ = 4021566196104. Its totient is φ = 2383150338304.

The previous prime is 3165121543127. The next prime is 3165121543183. The reversal of 3165121543145 is 5413451215613.

It can be written as a sum of positive squares in 4 ways, for example, as 166450944256 + 2998670598889 = 407984^2 + 1731667^2 .

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 3165121543145 - 2⁸ = 3165121542889 is a prime.

It is a Duffinian 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, 18618361934 + ... + 18618362103.

It is an arithmetic number, because the mean of its divisors is an integer number (502695774513).

Almost surely, 2^{3165121543145} is an apocalyptic number.

It is an amenable number.

3165121543145 is a deficient number, since it is larger than the sum of its proper divisors (856444652959).

3165121543145 is a wasteful number, since it uses less digits than its factorization.

3165121543145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37236724059.

The product of its digits is 216000, while the sum is 41.

Adding to 3165121543145 its reverse (5413451215613), we get a palindrome (8578572758758).

The spelling of 3165121543145 in words is "three trillion, one hundred sixty-five billion, one hundred twenty-one million, five hundred forty-three thousand, one hundred forty-five".