840329125 has 16 divisors (see below), whose sum is σ = 1110423600. Its totient is φ = 632716800.

The previous prime is 840329123. The next prime is 840329213. The reversal of 840329125 is 521923048.

840329125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 166874724 + 673454401 = 12918^2 + 25951^2 .

It is not a de Polignac number, because 840329125 - 2¹ = 840329123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840329123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195600 + ... + 199849.

It is an arithmetic number, because the mean of its divisors is an integer number (69401475).

Almost surely, 2^840329125 is an apocalyptic number.

840329125 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

840329125 is a deficient number, since it is larger than the sum of its proper divisors (270094475).

840329125 is a wasteful number, since it uses less digits than its factorization.

840329125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395481 (or 395471 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 840329125 is about 28988.4308819915. The cubic root of 840329125 is about 943.6620110064.

The spelling of 840329125 in words is "eight hundred forty million, three hundred twenty-nine thousand, one hundred twenty-five".