11557145 has 8 divisors (see below), whose sum is σ = 13886856. Its totient is φ = 9233536.

The previous prime is 11557129. The next prime is 11557151. The reversal of 11557145 is 54175511.

11557145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3308761 + 8248384 = 1819^2 + 2872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11557145 - 2⁴ = 11557129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6359 + ... + 7971.

It is an arithmetic number, because the mean of its divisors is an integer number (1735857).

Almost surely, 2^11557145 is an apocalyptic number.

It is an amenable number.

11557145 is a deficient number, since it is larger than the sum of its proper divisors (2329711).

11557145 is a wasteful number, since it uses less digits than its factorization.

11557145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051.

The product of its digits is 3500, while the sum is 29.

The square root of 11557145 is about 3399.5801211326. The cubic root of 11557145 is about 226.0911280504.

The spelling of 11557145 in words is "eleven million, five hundred fifty-seven thousand, one hundred forty-five".