4128122127 has 4 divisors (see below), whose sum is σ = 5504162840. Its totient is φ = 2752081416.

The previous prime is 4128122123. The next prime is 4128122147. The reversal of 4128122127 is 7212218214.

4128122127 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4128122127 - 2² = 4128122123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4128122094 and 4128122103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128122123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688020352 + ... + 688020357.

It is an arithmetic number, because the mean of its divisors is an integer number (1376040710).

Almost surely, 2^4128122127 is an apocalyptic number.

4128122127 is a deficient number, since it is larger than the sum of its proper divisors (1376040713).

4128122127 is a wasteful number, since it uses less digits than its factorization.

4128122127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376040712.

The product of its digits is 3584, while the sum is 30.

The square root of 4128122127 is about 64250.4640216707. The cubic root of 4128122127 is about 1604.1716823333.

The spelling of 4128122127 in words is "four billion, one hundred twenty-eight million, one hundred twenty-two thousand, one hundred twenty-seven".