2128107247 has 8 divisors (see below), whose sum is σ = 2432666016. Its totient is φ = 1823684352.

The previous prime is 2128107239. The next prime is 2128107257. The reversal of 2128107247 is 7427018212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2128107247 - 2³ = 2128107239 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 (2128107257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163 + ... + 65275.

It is an arithmetic number, because the mean of its divisors is an integer number (304083252).

Almost surely, 2^2128107247 is an apocalyptic number.

2128107247 is a deficient number, since it is larger than the sum of its proper divisors (304558769).

2128107247 is an equidigital number, since it uses as much as digits as its factorization.

2128107247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67937.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 2128107247 is about 46131.4128008237. The cubic root of 2128107247 is about 1286.2671259914.

The spelling of 2128107247 in words is "two billion, one hundred twenty-eight million, one hundred seven thousand, two hundred forty-seven".