1081098 has 24 divisors (see below), whose sum is σ = 2480868. Its totient is φ = 339072.

The previous prime is 1081097. The next prime is 1081099. The reversal of 1081098 is 8901801.

It is an interprime number because it is at equal distance from previous prime (1081097) and next prime (1081099).

It can be written as a sum of positive squares in 2 ways, for example, as 974169 + 106929 = 987^2 + 327^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1081097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1461 + ... + 2072.

2^1081098 is an apocalyptic number.

1081098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1081098 is an abundant number, since it is smaller than the sum of its proper divisors (1399770).

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

1081098 is a wasteful number, since it uses less digits than its factorization.

1081098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558 (or 3555 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1081098 is about 1039.7586258358. The cubic root of 1081098 is about 102.6333145352.

Adding to 1081098 its reverse (8901801), we get a palindrome (9982899).

The spelling of 1081098 in words is "one million, eighty-one thousand, ninety-eight".