1393144 has 8 divisors (see below), whose sum is σ = 2612160. Its totient is φ = 696568.

The previous prime is 1393141. The next prime is 1393159. The reversal of 1393144 is 4413931.

It is a happy number.

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 (1393141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87064 + ... + 87079.

It is an arithmetic number, because the mean of its divisors is an integer number (326520).

2^1393144 is an apocalyptic number.

It is an amenable number.

1393144 is a deficient number, since it is larger than the sum of its proper divisors (1219016).

1393144 is a wasteful number, since it uses less digits than its factorization.

1393144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174149 (or 174145 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 1393144 is about 1180.3152121361. The cubic root of 1393144 is about 111.6859826490.

The spelling of 1393144 in words is "one million, three hundred ninety-three thousand, one hundred forty-four".