11123564 has 6 divisors (see below), whose sum is σ = 19466244. Its totient is φ = 5561780.

The previous prime is 11123557. The next prime is 11123579. The reversal of 11123564 is 46532111.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390442 + ... + 1390449.

It is an arithmetic number, because the mean of its divisors is an integer number (3244374).

Almost surely, 2^11123564 is an apocalyptic number.

It is an amenable number.

11123564 is a deficient number, since it is larger than the sum of its proper divisors (8342680).

11123564 is a wasteful number, since it uses less digits than its factorization.

11123564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780895 (or 2780893 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 11123564 is about 3335.2007435835. The cubic root of 11123564 is about 223.2276493113.

Adding to 11123564 its reverse (46532111), we get a palindrome (57655675).

The spelling of 11123564 in words is "eleven million, one hundred twenty-three thousand, five hundred sixty-four".