3115221425 has 6 divisors (see below), whose sum is σ = 3862874598. Its totient is φ = 2492177120.

The previous prime is 3115221377. The next prime is 3115221427. The reversal of 3115221425 is 5241225113.

3115221425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 325585936 + 2789635489 = 18044^2 + 52817^2 .

It is not a de Polignac number, because 3115221425 - 2²⁰ = 3114172849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3115221394 and 3115221403.

It is not an unprimeable number, because it can be changed into a prime (3115221427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62304404 + ... + 62304453.

It is an arithmetic number, because the mean of its divisors is an integer number (643812433).

Almost surely, 2^3115221425 is an apocalyptic number.

It is an amenable number.

3115221425 is a deficient number, since it is larger than the sum of its proper divisors (747653173).

3115221425 is a wasteful number, since it uses less digits than its factorization.

3115221425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124608867 (or 124608862 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 3115221425 is about 55814.1686760629. The cubic root of 3115221425 is about 1460.4823303174.

Adding to 3115221425 its reverse (5241225113), we get a palindrome (8356446538).

The spelling of 3115221425 in words is "three billion, one hundred fifteen million, two hundred twenty-one thousand, four hundred twenty-five".