800123125 has 20 divisors (see below), whose sum is σ = 1002363516. Its totient is φ = 638480000.

The previous prime is 800123119. The next prime is 800123167. The reversal of 800123125 is 521321008.

It can be written as a sum of positive squares in 10 ways, for example, as 762091236 + 38031889 = 27606^2 + 6167^2 .

It is not a de Polignac number, because 800123125 - 2¹³ = 800114933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 800123096 and 800123105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 286737 + ... + 289513.

Almost surely, 2^800123125 is an apocalyptic number.

It is an amenable number.

800123125 is a deficient number, since it is larger than the sum of its proper divisors (202240391).

800123125 is an equidigital number, since it uses as much as digits as its factorization.

800123125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 800123125 is about 28286.4477267825. The cubic root of 800123125 is about 928.3653889149.

The spelling of 800123125 in words is "eight hundred million, one hundred twenty-three thousand, one hundred twenty-five".