1091052 has 18 divisors (see below), whose sum is σ = 2758028. Its totient is φ = 363672.

The previous prime is 1091047. The next prime is 1091053. The reversal of 1091052 is 2501901.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (1091053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15118 + ... + 15189.

2^1091052 is an apocalyptic number.

1091052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1091052 is an abundant number, since it is smaller than the sum of its proper divisors (1666976).

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

1091052 is a wasteful number, since it uses less digits than its factorization.

1091052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30317 (or 30312 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1091052 is about 1044.5343460126. The cubic root of 1091052 is about 102.9473448149.

Adding to 1091052 its reverse (2501901), we get a palindrome (3592953).

The spelling of 1091052 in words is "one million, ninety-one thousand, fifty-two".