2142041225 has 24 divisors (see below), whose sum is σ = 2816929080. Its totient is φ = 1610219520.

The previous prime is 2142041201. The next prime is 2142041243. The reversal of 2142041225 is 5221402412.

It can be written as a sum of positive squares in 12 ways, for example, as 445589881 + 1696451344 = 21109^2 + 41188^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2142041225 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2142041225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282281 + ... + 289769.

It is an arithmetic number, because the mean of its divisors is an integer number (117372045).

Almost surely, 2^2142041225 is an apocalyptic number.

2142041225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2142041225 is a deficient number, since it is larger than the sum of its proper divisors (674887855).

2142041225 is a wasteful number, since it uses less digits than its factorization.

2142041225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189 (or 8184 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 2142041225 is about 46282.1912294567. The cubic root of 2142041225 is about 1289.0683385766.

Adding to 2142041225 its reverse (5221402412), we get a palindrome (7363443637).

The spelling of 2142041225 in words is "two billion, one hundred forty-two million, forty-one thousand, two hundred twenty-five".