3105054020 has 12 divisors (see below), whose sum is σ = 6520613484. Its totient is φ = 1242021600.

The previous prime is 3105053989. The next prime is 3105054031. The reversal of 3105054020 is 204505013.

It can be written as a sum of positive squares in 2 ways, for example, as 1575931204 + 1529122816 = 39698^2 + 39104^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 155252701 = 3105054020 / (3 + 1 + 0 + 5 + 0 + 5 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3105053983 and 3105054001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77626331 + ... + 77626370.

It is an arithmetic number, because the mean of its divisors is an integer number (543384457).

Almost surely, 2^3105054020 is an apocalyptic number.

It is an amenable number.

3105054020 is an abundant number, since it is smaller than the sum of its proper divisors (3415559464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3105054020 is a wasteful number, since it uses less digits than its factorization.

3105054020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155252710 (or 155252708 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3105054020 is about 55723.0115840844. The cubic root of 3105054020 is about 1458.8916997057.

Adding to 3105054020 its reverse (204505013), we get a palindrome (3309559033).

The spelling of 3105054020 in words is "three billion, one hundred five million, fifty-four thousand, twenty".