1097144 has 8 divisors (see below), whose sum is σ = 2057160. Its totient is φ = 548568.

The previous prime is 1097143. The next prime is 1097147. The reversal of 1097144 is 4417901.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1097141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68564 + ... + 68579.

It is an arithmetic number, because the mean of its divisors is an integer number (257145).

2^1097144 is an apocalyptic number.

It is an amenable number.

1097144 is a deficient number, since it is larger than the sum of its proper divisors (960016).

1097144 is a wasteful number, since it uses less digits than its factorization.

1097144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137149 (or 137145 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1097144 is about 1047.4464186773. The cubic root of 1097144 is about 103.1385949631.

The spelling of 1097144 in words is "one million, ninety-seven thousand, one hundred forty-four".