9131425 has 6 divisors (see below), whose sum is σ = 11322998. Its totient is φ = 7305120.

The previous prime is 9131399. The next prime is 9131429. The reversal of 9131425 is 5241319.

It can be written as a sum of positive squares in 3 ways, for example, as 2985984 + 6145441 = 1728^2 + 2479^2 .

It is not a de Polignac number, because 9131425 - 2¹¹ = 9129377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 365257 = 9131425 / (9 + 1 + 3 + 1 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9131425.

It is not an unprimeable number, because it can be changed into a prime (9131429) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 182604 + ... + 182653.

Almost surely, 2^9131425 is an apocalyptic number.

It is an amenable number.

9131425 is a deficient number, since it is larger than the sum of its proper divisors (2191573).

9131425 is a wasteful number, since it uses less digits than its factorization.

9131425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365267 (or 365262 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 9131425 is about 3021.8247798309. The cubic root of 9131425 is about 209.0159935259.

The spelling of 9131425 in words is "nine million, one hundred thirty-one thousand, four hundred twenty-five".