4005125115 has 16 divisors (see below), whose sum is σ = 6785153568. Its totient is φ = 2010415616.

The previous prime is 4005125101. The next prime is 4005125119. The reversal of 4005125115 is 5115215004.

It is a cyclic number.

It is not a de Polignac number, because 4005125115 - 2⁴ = 4005125099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4005125119) 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 15 ways as a sum of consecutive naturals, for example, 7852932 + ... + 7853441.

It is an arithmetic number, because the mean of its divisors is an integer number (424072098).

Almost surely, 2^4005125115 is an apocalyptic number.

4005125115 is a deficient number, since it is larger than the sum of its proper divisors (2780028453).

4005125115 is a wasteful number, since it uses less digits than its factorization.

4005125115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15706398.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 4005125115 is about 63286.0578247690. The cubic root of 4005125115 is about 1588.0787303641.

The spelling of 4005125115 in words is "four billion, five million, one hundred twenty-five thousand, one hundred fifteen".