5120142109 has 4 divisors (see below), whose sum is σ = 5190281116. Its totient is φ = 5050003104.

The previous prime is 5120142047. The next prime is 5120142149. The reversal of 5120142109 is 9012410215.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3720634009 + 1399508100 = 60997^2 + 37410^2 .

It is a cyclic number.

It is not a de Polignac number, because 5120142109 - 2¹¹ = 5120140061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120142149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35069394 + ... + 35069539.

It is an arithmetic number, because the mean of its divisors is an integer number (1297570279).

Almost surely, 2^5120142109 is an apocalyptic number.

It is an amenable number.

5120142109 is a deficient number, since it is larger than the sum of its proper divisors (70139007).

5120142109 is an equidigital number, since it uses as much as digits as its factorization.

5120142109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70139006.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 5120142109 is about 71555.1682899286. The cubic root of 5120142109 is about 1723.5636979488.

The spelling of 5120142109 in words is "five billion, one hundred twenty million, one hundred forty-two thousand, one hundred nine".