1139449 has 4 divisors (see below), whose sum is σ = 1199440. Its totient is φ = 1079460.

The previous prime is 1139423. The next prime is 1139461. The reversal of 1139449 is 9449311.

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: 9449311 = 41 ⋅230471.

It is a cyclic number.

It is not a de Polignac number, because 1139449 - 2⁷ = 1139321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1139449.

It is not an unprimeable number, because it can be changed into a prime (1139249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29967 + ... + 30004.

It is an arithmetic number, because the mean of its divisors is an integer number (299860).

2^1139449 is an apocalyptic number.

1139449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1139449 is a deficient number, since it is larger than the sum of its proper divisors (59991).

1139449 is an equidigital number, since it uses as much as digits as its factorization.

1139449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59990.

The product of its digits is 3888, while the sum is 31.

The square root of 1139449 is about 1067.4497646260. The cubic root of 1139449 is about 104.4475595956.

The spelling of 1139449 in words is "one million, one hundred thirty-nine thousand, four hundred forty-nine".