1149289 has 4 divisors (see below), whose sum is σ = 1151620. Its totient is φ = 1146960.

The previous prime is 1149283. The next prime is 1149307. The reversal of 1149289 is 9829411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9829411 = 251 ⋅39161.

It can be written as a sum of positive squares in 2 ways, for example, as 501264 + 648025 = 708^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149289 - 2¹³ = 1141097 is a prime.

It is a Duffinian number.

1149289 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1149283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102 + ... + 1519.

It is an arithmetic number, because the mean of its divisors is an integer number (287905).

2^1149289 is an apocalyptic number.

It is an amenable number.

1149289 is a deficient number, since it is larger than the sum of its proper divisors (2331).

1149289 is an equidigital number, since it uses as much as digits as its factorization.

1149289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330.

The product of its digits is 5184, while the sum is 34.

The square root of 1149289 is about 1072.0489727620. The cubic root of 1149289 is about 104.7473593508.

The spelling of 1149289 in words is "one million, one hundred forty-nine thousand, two hundred eighty-nine".