11528145 has 12 divisors (see below), whose sum is σ = 19982196. Its totient is φ = 6148320.

The previous prime is 11528123. The next prime is 11528149. The reversal of 11528145 is 54182511.

It can be written as a sum of positive squares in 2 ways, for example, as 8573184 + 2954961 = 2928^2 + 1719^2 .

It is not a de Polignac number, because 11528145 - 2⁷ = 11528017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11528149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128046 + ... + 128135.

It is an arithmetic number, because the mean of its divisors is an integer number (1665183).

Almost surely, 2^11528145 is an apocalyptic number.

11528145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11528145 is a deficient number, since it is larger than the sum of its proper divisors (8454051).

11528145 is a wasteful number, since it uses less digits than its factorization.

11528145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256192 (or 256189 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 11528145 is about 3395.3122095030. The cubic root of 11528145 is about 225.9018617423.

The spelling of 11528145 in words is "eleven million, five hundred twenty-eight thousand, one hundred forty-five".