1449139 has 4 divisors (see below), whose sum is σ = 1452880. Its totient is φ = 1445400.

The previous prime is 1449127. The next prime is 1449163. The reversal of 1449139 is 9319441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9319441 = 1637 ⋅5693.

It is a cyclic number.

It is not a de Polignac number, because 1449139 - 2¹⁷ = 1318067 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 1449139.

It is not an unprimeable number, because it can be changed into a prime (1449169) 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, 1212 + ... + 2089.

It is an arithmetic number, because the mean of its divisors is an integer number (363220).

2^1449139 is an apocalyptic number.

1449139 is a deficient number, since it is larger than the sum of its proper divisors (3741).

1449139 is an equidigital number, since it uses as much as digits as its factorization.

1449139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740.

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

The square root of 1449139 is about 1203.8018940008. The cubic root of 1449139 is about 113.1627123128.

The spelling of 1449139 in words is "one million, four hundred forty-nine thousand, one hundred thirty-nine".