11543572 has 6 divisors (see below), whose sum is σ = 20201258. Its totient is φ = 5771784.

The previous prime is 11543551. The next prime is 11543603. The reversal of 11543572 is 27534511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11519236 + 24336 = 3394^2 + 156^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11543572.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1442943 + ... + 1442950.

Almost surely, 2^11543572 is an apocalyptic number.

It is an amenable number.

11543572 is a deficient number, since it is larger than the sum of its proper divisors (8657686).

11543572 is a wasteful number, since it uses less digits than its factorization.

11543572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885897 (or 2885895 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 11543572 is about 3397.5832587297. The cubic root of 11543572 is about 226.0025843545.

The spelling of 11543572 in words is "eleven million, five hundred forty-three thousand, five hundred seventy-two".