1147249 has 2 divisors, whose sum is σ = 1147250. Its totient is φ = 1147248.

The previous prime is 1147247. The next prime is 1147253. The reversal of 1147249 is 9427411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 518400 = 793^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 1147249 - 2¹ = 1147247 is a prime.

Together with 1147247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1147243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 573624 + 573625.

It is an arithmetic number, because the mean of its divisors is an integer number (573625).

2^1147249 is an apocalyptic number.

It is an amenable number.

1147249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1147249 is an equidigital number, since it uses as much as digits as its factorization.

1147249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 1147249 is about 1071.0971011071. The cubic root of 1147249 is about 104.6853467590.

The spelling of 1147249 in words is "one million, one hundred forty-seven thousand, two hundred forty-nine".