11957144 has 8 divisors (see below), whose sum is σ = 22419660. Its totient is φ = 5978568.

The previous prime is 11957131. The next prime is 11957147. The reversal of 11957144 is 44175911.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11957144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11957147) by changing a digit.

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 as a sum of consecutive naturals, namely, 747314 + ... + 747329.

Almost surely, 2^11957144 is an apocalyptic number.

It is an amenable number.

11957144 is a deficient number, since it is larger than the sum of its proper divisors (10462516).

11957144 is a wasteful number, since it uses less digits than its factorization.

11957144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494649 (or 1494645 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 11957144 is about 3457.9103516430. The cubic root of 11957144 is about 228.6699796751.

The spelling of 11957144 in words is "eleven million, nine hundred fifty-seven thousand, one hundred forty-four".