11139552 has 48 divisors (see below), whose sum is σ = 32492880. Its totient is φ = 3712896.

The previous prime is 11139533. The next prime is 11139563. The reversal of 11139552 is 25593111.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5583 + ... + 7310.

It is an arithmetic number, because the mean of its divisors is an integer number (676935).

Almost surely, 2^11139552 is an apocalyptic number.

11139552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11139552 is an abundant number, since it is smaller than the sum of its proper divisors (21353328).

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

11139552 is a wasteful number, since it uses less digits than its factorization.

11139552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12912 (or 12898 counting only the distinct ones).

The product of its digits is 1350, while the sum is 27.

The square root of 11139552 is about 3337.5967401710. The cubic root of 11139552 is about 223.3345471581.

The spelling of 11139552 in words is "eleven million, one hundred thirty-nine thousand, five hundred fifty-two".