9121425 has 48 divisors (see below), whose sum is σ = 16397760. Its totient is φ = 4458240.

The previous prime is 9121403. The next prime is 9121433. The reversal of 9121425 is 5241219.

9121425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9121425 - 2⁶ = 9121361 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9121395 and 9121404.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 52639 + ... + 52811.

It is an arithmetic number, because the mean of its divisors is an integer number (341620).

Almost surely, 2^9121425 is an apocalyptic number.

9121425 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9121425 is a deficient number, since it is larger than the sum of its proper divisors (7276335).

9121425 is a wasteful number, since it uses less digits than its factorization.

9121425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 237 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 9121425 is about 3020.1696972190. The cubic root of 9121425 is about 208.9396665053.

It can be divided in two parts, 912 and 1425, that multiplied together give a square (1299600 = 1140²).

The spelling of 9121425 in words is "nine million, one hundred twenty-one thousand, four hundred twenty-five".