11198281 has 2 divisors, whose sum is σ = 11198282. Its totient is φ = 11198280.

The previous prime is 11198269. The next prime is 11198293. The reversal of 11198281 is 18289111.

It is a balanced prime because it is at equal distance from previous prime (11198269) and next prime (11198293).

It can be written as a sum of positive squares in only one way, i.e., 10342656 + 855625 = 3216^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 11198281 - 2⁵ = 11198249 is a prime.

It is a super-2 number, since 2×11198281² = 250802994709922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11198221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599140 + 5599141.

It is an arithmetic number, because the mean of its divisors is an integer number (5599141).

Almost surely, 2^11198281 is an apocalyptic number.

It is an amenable number.

11198281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11198281 is an equidigital number, since it uses as much as digits as its factorization.

11198281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 31.

The square root of 11198281 is about 3346.3832715336. The cubic root of 11198281 is about 223.7263412455.

The spelling of 11198281 in words is "eleven million, one hundred ninety-eight thousand, two hundred eighty-one".