11573136 has 30 divisors (see below), whose sum is σ = 32389110. Its totient is φ = 3857664.

The previous prime is 11573123. The next prime is 11573143. The reversal of 11573136 is 63137511.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 1838736 = 3120^2 + 1356^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40041 + ... + 40328.

It is an arithmetic number, because the mean of its divisors is an integer number (1079637).

Almost surely, 2^11573136 is an apocalyptic number.

11573136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11573136 is an abundant number, since it is smaller than the sum of its proper divisors (20815974).

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

11573136 is a wasteful number, since it uses less digits than its factorization.

11573136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80383 (or 80374 counting only the distinct ones).

The product of its digits is 1890, while the sum is 27.

The square root of 11573136 is about 3401.9312162359. The cubic root of 11573136 is about 226.1953567050.

The spelling of 11573136 in words is "eleven million, five hundred seventy-three thousand, one hundred thirty-six".