815841125 has 32 divisors (see below), whose sum is σ = 1116011520. Its totient is φ = 590520000.

The previous prime is 815841121. The next prime is 815841127. The reversal of 815841125 is 521148518.

815841125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 815841125 - 2² = 815841121 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815841121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313580 + ... + 316170.

It is an arithmetic number, because the mean of its divisors is an integer number (34875360).

Almost surely, 2^815841125 is an apocalyptic number.

It is an amenable number.

815841125 is a deficient number, since it is larger than the sum of its proper divisors (300170395).

815841125 is a wasteful number, since it uses less digits than its factorization.

815841125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2846 (or 2836 counting only the distinct ones).

The product of its digits is 12800, while the sum is 35.

The square root of 815841125 is about 28562.9327100702. The cubic root of 815841125 is about 934.4050949841.

The spelling of 815841125 in words is "eight hundred fifteen million, eight hundred forty-one thousand, one hundred twenty-five".