1149249 has 4 divisors (see below), whose sum is σ = 1532336. Its totient is φ = 766164.

The previous prime is 1149233. The next prime is 1149259. The reversal of 1149249 is 9429411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9429411 = 3 ⋅3143137.

It is not a de Polignac number, because 1149249 - 2⁴ = 1149233 is a prime.

It is a D-number.

It is a Duffinian number.

1149249 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1149209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191539 + ... + 191544.

It is an arithmetic number, because the mean of its divisors is an integer number (383084).

2^1149249 is an apocalyptic number.

It is an amenable number.

1149249 is a deficient number, since it is larger than the sum of its proper divisors (383087).

1149249 is an equidigital number, since it uses as much as digits as its factorization.

1149249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383086.

The product of its digits is 2592, while the sum is 30.

The square root of 1149249 is about 1072.0303167355. The cubic root of 1149249 is about 104.7461441232.

The spelling of 1149249 in words is "one million, one hundred forty-nine thousand, two hundred forty-nine".