11213574 has 16 divisors (see below), whose sum is σ = 23746608. Its totient is φ = 3517952.

The previous prime is 11213567. The next prime is 11213597. The reversal of 11213574 is 47531211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54867 + ... + 55070.

It is an arithmetic number, because the mean of its divisors is an integer number (1484163).

Almost surely, 2^11213574 is an apocalyptic number.

11213574 is an abundant number, since it is smaller than the sum of its proper divisors (12533034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11213574 is a wasteful number, since it uses less digits than its factorization.

11213574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109959.

The product of its digits is 840, while the sum is 24.

The square root of 11213574 is about 3348.6674961841. The cubic root of 11213574 is about 223.8281393284.

Adding to 11213574 its reverse (47531211), we get a palindrome (58744785).

The spelling of 11213574 in words is "eleven million, two hundred thirteen thousand, five hundred seventy-four".