11181098 has 4 divisors (see below), whose sum is σ = 16771650. Its totient is φ = 5590548.

The previous prime is 11181091. The next prime is 11181103. The reversal of 11181098 is 89018111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10608049 + 573049 = 3257^2 + 757^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11181098.

It is not an unprimeable number, because it can be changed into a prime (11181091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2795273 + ... + 2795276.

Almost surely, 2^11181098 is an apocalyptic number.

11181098 is a deficient number, since it is larger than the sum of its proper divisors (5590552).

11181098 is an equidigital number, since it uses as much as digits as its factorization.

11181098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5590551.

The product of its (nonzero) digits is 576, while the sum is 29.

The square root of 11181098 is about 3343.8148872209. The cubic root of 11181098 is about 223.6118517191.

The spelling of 11181098 in words is "eleven million, one hundred eighty-one thousand, ninety-eight".