2125451115 has 12 divisors (see below), whose sum is σ = 3684115344. Its totient is φ = 1133573904.

The previous prime is 2125451113. The next prime is 2125451149. The reversal of 2125451115 is 5111545212.

It is a happy number.

2125451115 is a `hidden beast` number, since 2 + 1 + 2 + 545 + 1 + 115 = 666.

It is not a de Polignac number, because 2125451115 - 2¹ = 2125451113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2125451113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23616079 + ... + 23616168.

It is an arithmetic number, because the mean of its divisors is an integer number (307009612).

Almost surely, 2^2125451115 is an apocalyptic number.

2125451115 is a deficient number, since it is larger than the sum of its proper divisors (1558664229).

2125451115 is a wasteful number, since it uses less digits than its factorization.

2125451115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47232258 (or 47232255 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 2125451115 is about 46102.6150559814. The cubic root of 2125451115 is about 1285.7317648682.

Adding to 2125451115 its reverse (5111545212), we get a palindrome (7236996327).

The spelling of 2125451115 in words is "two billion, one hundred twenty-five million, four hundred fifty-one thousand, one hundred fifteen".