322145128 has 16 divisors (see below), whose sum is σ = 604252260. Its totient is φ = 161011200.

The previous prime is 322145123. The next prime is 322145141. The reversal of 322145128 is 821541223.

It can be written as a sum of positive squares in 2 ways, for example, as 265624804 + 56520324 = 16298^2 + 7518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 322145096 and 322145105.

It is not an unprimeable number, because it can be changed into a prime (322145123) 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, 20898 + ... + 32878.

Almost surely, 2^322145128 is an apocalyptic number.

It is an amenable number.

322145128 is a deficient number, since it is larger than the sum of its proper divisors (282107132).

322145128 is a wasteful number, since it uses less digits than its factorization.

322145128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15348 (or 15344 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 322145128 is about 17948.4018230036. The cubic root of 322145128 is about 685.5153583512.

The spelling of 322145128 in words is "three hundred twenty-two million, one hundred forty-five thousand, one hundred twenty-eight".