840125512 has 16 divisors (see below), whose sum is σ = 1576210860. Its totient is φ = 419802624.

The previous prime is 840125497. The next prime is 840125519. The reversal of 840125512 is 215521048.

It can be written as a sum of positive squares in 2 ways, for example, as 706815396 + 133310116 = 26586^2 + 11546^2 .

It is not an unprimeable number, because it can be changed into a prime (840125519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18433 + ... + 44944.

Almost surely, 2^840125512 is an apocalyptic number.

It is an amenable number.

840125512 is a deficient number, since it is larger than the sum of its proper divisors (736085348).

840125512 is a wasteful number, since it uses less digits than its factorization.

840125512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65040 (or 65036 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 840125512 is about 28984.9186992132. The cubic root of 840125512 is about 943.5857879457.

The spelling of 840125512 in words is "eight hundred forty million, one hundred twenty-five thousand, five hundred twelve".