1091130 has 32 divisors (see below), whose sum is σ = 2692224. Its totient is φ = 282816.

The previous prime is 1091119. The next prime is 1091137. The reversal of 1091130 is 311901.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619 + ... + 1601.

It is an arithmetic number, because the mean of its divisors is an integer number (84132).

2^1091130 is an apocalyptic number.

1091130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1091130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346112).

1091130 is an abundant number, since it is smaller than the sum of its proper divisors (1601094).

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

1091130 is a wasteful number, since it uses less digits than its factorization.

1091130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1091130 is about 1044.5716825570. The cubic root of 1091130 is about 102.9497980134.

It can be divided in two parts, 1091 and 130, that added together give a palindrome (1221).

The spelling of 1091130 in words is "one million, ninety-one thousand, one hundred thirty".