11257144 has 8 divisors (see below), whose sum is σ = 21107160. Its totient is φ = 5628568.

The previous prime is 11257109. The next prime is 11257151. The reversal of 11257144 is 44175211.

11257144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×11257144³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703564 + ... + 703579.

It is an arithmetic number, because the mean of its divisors is an integer number (2638395).

Almost surely, 2^11257144 is an apocalyptic number.

It is an amenable number.

11257144 is a deficient number, since it is larger than the sum of its proper divisors (9850016).

11257144 is a wasteful number, since it uses less digits than its factorization.

11257144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407149 (or 1407145 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 11257144 is about 3355.1667618764. The cubic root of 11257144 is about 224.1176571517.

The spelling of 11257144 in words is "eleven million, two hundred fifty-seven thousand, one hundred forty-four".