1385144 has 24 divisors (see below), whose sum is σ = 2687880. Its totient is φ = 669120.

The previous prime is 1385117. The next prime is 1385147. The reversal of 1385144 is 4415831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13397 + ... + 13499.

It is an arithmetic number, because the mean of its divisors is an integer number (111995).

2^1385144 is an apocalyptic number.

It is an amenable number.

1385144 is a deficient number, since it is larger than the sum of its proper divisors (1302736).

1385144 is a wasteful number, since it uses less digits than its factorization.

1385144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 146 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 1385144 is about 1176.9214077414. The cubic root of 1385144 is about 111.4717900038.

The spelling of 1385144 in words is "one million, three hundred eighty-five thousand, one hundred forty-four".