978168125 has 40 divisors (see below), whose sum is σ = 1351067520. Its totient is φ = 702000000.

The previous prime is 978168101. The next prime is 978168131. The reversal of 978168125 is 521861879.

It is not a de Polignac number, because 978168125 - 2¹² = 978164029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 978168125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 542225 + ... + 544025.

It is an arithmetic number, because the mean of its divisors is an integer number (33776688).

Almost surely, 2^978168125 is an apocalyptic number.

It is an amenable number.

978168125 is a deficient number, since it is larger than the sum of its proper divisors (372899395).

978168125 is a wasteful number, since it uses less digits than its factorization.

978168125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1896 counting only the distinct ones).

The product of its digits is 241920, while the sum is 47.

The square root of 978168125 is about 31275.6794490543. The cubic root of 978168125 is about 992.6690975284.

The spelling of 978168125 in words is "nine hundred seventy-eight million, one hundred sixty-eight thousand, one hundred twenty-five".