1091034 has 36 divisors (see below), whose sum is σ = 2752074. Its totient is φ = 311472.

The previous prime is 1091033. The next prime is 1091047. The reversal of 1091034 is 4301901.

It can be written as a sum of positive squares in only one way, i.e., 815409 + 275625 = 903^2 + 525^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1090998 and 1091016.

It is not an unprimeable number, because it can be changed into a prime (1091033) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 264 + ... + 1500.

2^1091034 is an apocalyptic number.

1091034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1091034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376037).

1091034 is an abundant number, since it is smaller than the sum of its proper divisors (1661040).

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

1091034 is a wasteful number, since it uses less digits than its factorization.

1091034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1091034 is about 1044.5257296975. The cubic root of 1091034 is about 102.9467786755.

Adding to 1091034 its reverse (4301901), we get a palindrome (5392935).

The spelling of 1091034 in words is "one million, ninety-one thousand, thirty-four".