2125440015 has 16 divisors (see below), whose sum is σ = 3517970400. Its totient is φ = 1094479232.

The previous prime is 2125440007. The next prime is 2125440017. The reversal of 2125440015 is 5100445212.

It is a cyclic number.

It is not a de Polignac number, because 2125440015 - 2³ = 2125440007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125440017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2442600 + ... + 2443469.

It is an arithmetic number, because the mean of its divisors is an integer number (219873150).

Almost surely, 2^2125440015 is an apocalyptic number.

2125440015 is a deficient number, since it is larger than the sum of its proper divisors (1392530385).

2125440015 is a wasteful number, since it uses less digits than its factorization.

2125440015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4886106.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2125440015 is about 46102.4946721975. The cubic root of 2125440015 is about 1285.7295266535.

Adding to 2125440015 its reverse (5100445212), we get a palindrome (7225885227).

The spelling of 2125440015 in words is "two billion, one hundred twenty-five million, four hundred forty thousand, fifteen".