3112020145 has 8 divisors (see below), whose sum is σ = 4021687656. Its totient is φ = 2298107136.

The previous prime is 3112020139. The next prime is 3112020169. The reversal of 3112020145 is 5410202113.

It can be written as a sum of positive squares in 4 ways, for example, as 107993664 + 3004026481 = 10392^2 + 54809^2 .

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

It is not a de Polignac number, because 3112020145 - 2¹⁷ = 3111889073 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, 23938552 + ... + 23938681.

It is an arithmetic number, because the mean of its divisors is an integer number (502710957).

Almost surely, 2^3112020145 is an apocalyptic number.

It is an amenable number.

3112020145 is a deficient number, since it is larger than the sum of its proper divisors (909667511).

3112020145 is a wasteful number, since it uses less digits than its factorization.

3112020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47877251.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 3112020145 is about 55785.4832819435. The cubic root of 3112020145 is about 1459.9818827113.

Adding to 3112020145 its reverse (5410202113), we get a palindrome (8522222258).

The spelling of 3112020145 in words is "three billion, one hundred twelve million, twenty thousand, one hundred forty-five".