1102140 has 96 divisors (see below), whose sum is σ = 3716160. Its totient is φ = 269568.

The previous prime is 1102117. The next prime is 1102147. The reversal of 1102140 is 412011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6942 + ... + 7098.

It is an arithmetic number, because the mean of its divisors is an integer number (38710).

2^1102140 is an apocalyptic number.

1102140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1858080).

1102140 is an abundant number, since it is smaller than the sum of its proper divisors (2614020).

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

1102140 is a wasteful number, since it uses less digits than its factorization.

1102140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1102140 is about 1049.8285574321. The cubic root of 1102140 is about 103.2949099832.

Adding to 1102140 its reverse (412011), we get a palindrome (1514151).

The spelling of 1102140 in words is "one million, one hundred two thousand, one hundred forty".