4125207009 has 32 divisors (see below), whose sum is σ = 6868399104. Its totient is φ = 2139554880.

The previous prime is 4125207007. The next prime is 4125207011. The reversal of 4125207009 is 9007025214.

It is an interprime number because it is at equal distance from previous prime (4125207007) and next prime (4125207011).

It is not a de Polignac number, because 4125207009 - 2¹ = 4125207007 is a prime.

It is a super-4 number, since 4×4125207009⁴ (a number of 40 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (4125207001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134647 + ... + 162419.

It is an arithmetic number, because the mean of its divisors is an integer number (214637472).

Almost surely, 2^4125207009 is an apocalyptic number.

It is an amenable number.

4125207009 is a deficient number, since it is larger than the sum of its proper divisors (2743192095).

4125207009 is a wasteful number, since it uses less digits than its factorization.

4125207009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28437.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 4125207009 is about 64227.7744359868. The cubic root of 4125207009 is about 1603.7939923663.

The spelling of 4125207009 in words is "four billion, one hundred twenty-five million, two hundred seven thousand, nine".