4128125145 has 8 divisors (see below), whose sum is σ = 6605000256. Its totient is φ = 2201666736.

The previous prime is 4128125093. The next prime is 4128125167. The reversal of 4128125145 is 5415218214.

4128125145 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4128125145 - 2¹⁶ = 4128059609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137604157 + ... + 137604186.

It is an arithmetic number, because the mean of its divisors is an integer number (825625032).

Almost surely, 2^4128125145 is an apocalyptic number.

It is an amenable number.

4128125145 is a deficient number, since it is larger than the sum of its proper divisors (2476875111).

4128125145 is a wasteful number, since it uses less digits than its factorization.

4128125145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275208351.

The product of its digits is 12800, while the sum is 33.

The square root of 4128125145 is about 64250.4875078781. The cubic root of 4128125145 is about 1604.1720732608.

The spelling of 4128125145 in words is "four billion, one hundred twenty-eight million, one hundred twenty-five thousand, one hundred forty-five".