9125399 has 4 divisors (see below), whose sum is σ = 9134136. Its totient is φ = 9116664.

The previous prime is 9125393. The next prime is 9125419. The reversal of 9125399 is 9935219.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9935219 = 7 ⋅1419317.

It is a cyclic number.

It is not a de Polignac number, because 9125399 - 2⁸ = 9125143 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 (9125393) 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 3 ways as a sum of consecutive naturals, for example, 2549 + ... + 4974.

It is an arithmetic number, because the mean of its divisors is an integer number (2283534).

Almost surely, 2^9125399 is an apocalyptic number.

9125399 is a deficient number, since it is larger than the sum of its proper divisors (8737).

9125399 is a wasteful number, since it uses less digits than its factorization.

9125399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736.

The product of its digits is 21870, while the sum is 38.

The square root of 9125399 is about 3020.8275356266. The cubic root of 9125399 is about 208.9700055397.

The spelling of 9125399 in words is "nine million, one hundred twenty-five thousand, three hundred ninety-nine".