9943125 has 20 divisors (see below), whose sum is σ = 16569696. Its totient is φ = 5302000.

The previous prime is 9943123. The next prime is 9943127. The reversal of 9943125 is 5213499.

It is an interprime number because it is at equal distance from previous prime (9943123) and next prime (9943127).

It is not a de Polignac number, because 9943125 - 2¹ = 9943123 is a prime.

9943125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9943123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 777 + ... + 4526.

Almost surely, 2^9943125 is an apocalyptic number.

It is an amenable number.

9943125 is a deficient number, since it is larger than the sum of its proper divisors (6626571).

9943125 is an equidigital number, since it uses as much as digits as its factorization.

9943125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326 (or 5311 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 9943125 is about 3153.2721100470. The cubic root of 9943125 is about 215.0342472937.

The spelling of 9943125 in words is "nine million, nine hundred forty-three thousand, one hundred twenty-five".