1097140 has 24 divisors (see below), whose sum is σ = 2513952. Its totient is φ = 398880.

The previous prime is 1097113. The next prime is 1097141. The reversal of 1097140 is 417901.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 in 7 ways as a sum of consecutive naturals, for example, 2274 + ... + 2713.

It is an arithmetic number, because the mean of its divisors is an integer number (104748).

2^1097140 is an apocalyptic number.

1097140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1097140 is an abundant number, since it is smaller than the sum of its proper divisors (1416812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1097140 is a wasteful number, since it uses less digits than its factorization.

1097140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007 (or 5005 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1097140 is about 1047.4445092701. Note that the first 3 decimals coincide. The cubic root of 1097140 is about 103.1384696211.

It can be divided in two parts, 10971 and 40, that added together give a palindrome (11011).

The spelling of 1097140 in words is "one million, ninety-seven thousand, one hundred forty".