11841145 has 4 divisors (see below), whose sum is σ = 14209380. Its totient is φ = 9472912.

The previous prime is 11841143. The next prime is 11841149. The reversal of 11841145 is 54114811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54114811 = 3229 ⋅16759.

It can be written as a sum of positive squares in 2 ways, for example, as 7123561 + 4717584 = 2669^2 + 2172^2 .

It is a cyclic number.

It is not a de Polignac number, because 11841145 - 2¹ = 11841143 is a prime.

It is a super-2 number, since 2×11841145² = 280425429822050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11841143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184110 + ... + 1184119.

It is an arithmetic number, because the mean of its divisors is an integer number (3552345).

Almost surely, 2^11841145 is an apocalyptic number.

It is an amenable number.

11841145 is a deficient number, since it is larger than the sum of its proper divisors (2368235).

11841145 is an equidigital number, since it uses as much as digits as its factorization.

11841145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368234.

The product of its digits is 640, while the sum is 25.

The square root of 11841145 is about 3441.0964822277. The cubic root of 11841145 is about 227.9281154835.

Adding to 11841145 its reverse (54114811), we get a palindrome (65955956).

The spelling of 11841145 in words is "eleven million, eight hundred forty-one thousand, one hundred forty-five".