11657144 has 8 divisors (see below), whose sum is σ = 21857160. Its totient is φ = 5828568.

The previous prime is 11657143. The next prime is 11657153. The reversal of 11657144 is 44175611.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11657141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728564 + ... + 728579.

It is an arithmetic number, because the mean of its divisors is an integer number (2732145).

Almost surely, 2^11657144 is an apocalyptic number.

It is an amenable number.

11657144 is a deficient number, since it is larger than the sum of its proper divisors (10200016).

11657144 is a wasteful number, since it uses less digits than its factorization.

11657144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457149 (or 1457145 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 11657144 is about 3414.2559950888. The cubic root of 11657144 is about 226.7413460195.

The spelling of 11657144 in words is "eleven million, six hundred fifty-seven thousand, one hundred forty-four".