2125135422 has 96 divisors (see below), whose sum is σ = 5013616608. Its totient is φ = 647958528.

The previous prime is 2125135417. The next prime is 2125135423. The reversal of 2125135422 is 2245315212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125135423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4907718 + ... + 4908150.

It is an arithmetic number, because the mean of its divisors is an integer number (52225173).

Almost surely, 2^2125135422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125135422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2506808304).

2125135422 is an abundant number, since it is smaller than the sum of its proper divisors (2888481186).

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

2125135422 is a wasteful number, since it uses less digits than its factorization.

2125135422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874 (or 871 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2125135422 is about 46099.1911208863. The cubic root of 2125135422 is about 1285.6681051879.

The spelling of 2125135422 in words is "two billion, one hundred twenty-five million, one hundred thirty-five thousand, four hundred twenty-two".