1100249 has 2 divisors, whose sum is σ = 1100250. Its totient is φ = 1100248.

The previous prime is 1100243. The next prime is 1100261. The reversal of 1100249 is 9420011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990025 + 110224 = 995^2 + 332^2 .

It is an emirp because it is prime and its reverse (9420011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100249 - 2²⁰ = 51673 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (1100243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550124 + 550125.

It is an arithmetic number, because the mean of its divisors is an integer number (550125).

2^1100249 is an apocalyptic number.

It is an amenable number.

1100249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100249 is an equidigital number, since it uses as much as digits as its factorization.

1100249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1100249 is about 1048.9275475456. The cubic root of 1100249 is about 103.2357999807.

The spelling of 1100249 in words is "one million, one hundred thousand, two hundred forty-nine".