11129425 has 12 divisors (see below), whose sum is σ = 13851916. Its totient is φ = 8870400.

The previous prime is 11129423. The next prime is 11129449. The reversal of 11129425 is 52492111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 529 + 11128896 = 23^2 + 3336^2 .

It is not a de Polignac number, because 11129425 - 2¹ = 11129423 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11129425.

It is not an unprimeable number, because it can be changed into a prime (11129423) 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 11 ways as a sum of consecutive naturals, for example, 7765 + ... + 9085.

Almost surely, 2^11129425 is an apocalyptic number.

It is an amenable number.

11129425 is a deficient number, since it is larger than the sum of its proper divisors (2722491).

11129425 is a wasteful number, since it uses less digits than its factorization.

11129425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668 (or 1663 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 11129425 is about 3336.0792856286. The cubic root of 11129425 is about 223.2668486043.

The spelling of 11129425 in words is "eleven million, one hundred twenty-nine thousand, four hundred twenty-five".