99986125 has 16 divisors (see below), whose sum is σ = 125354736. Its totient is φ = 79622400.

The previous prime is 99986123. The next prime is 99986141. The reversal of 99986125 is 52168999.

It can be written as a sum of positive squares in 8 ways, for example, as 56505289 + 43480836 = 7517^2 + 6594^2 .

It is not a de Polignac number, because 99986125 - 2¹ = 99986123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99986123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27409 + ... + 30841.

It is an arithmetic number, because the mean of its divisors is an integer number (7834671).

Almost surely, 2^99986125 is an apocalyptic number.

It is an amenable number.

99986125 is a deficient number, since it is larger than the sum of its proper divisors (25368611).

99986125 is a wasteful number, since it uses less digits than its factorization.

99986125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681 (or 3671 counting only the distinct ones).

The product of its digits is 349920, while the sum is 49.

The square root of 99986125 is about 9999.3062259339. The cubic root of 99986125 is about 464.1374150200.

The spelling of 99986125 in words is "ninety-nine million, nine hundred eighty-six thousand, one hundred twenty-five".