11145213 has 24 divisors (see below), whose sum is σ = 17022720. Its totient is φ = 7015680.

The previous prime is 11145187. The next prime is 11145221. The reversal of 11145213 is 31254111.

It is not a de Polignac number, because 11145213 - 2⁸ = 11144957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11533 + ... + 12461.

It is an arithmetic number, because the mean of its divisors is an integer number (709280).

Almost surely, 2^11145213 is an apocalyptic number.

It is an amenable number.

11145213 is a deficient number, since it is larger than the sum of its proper divisors (5877507).

11145213 is a wasteful number, since it uses less digits than its factorization.

11145213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009 (or 1006 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11145213 is about 3338.4446977597. Note that the first 3 decimals coincide. The cubic root of 11145213 is about 223.3723728194.

Adding to 11145213 its reverse (31254111), we get a palindrome (42399324).

The spelling of 11145213 in words is "eleven million, one hundred forty-five thousand, two hundred thirteen".