1478249 has 4 divisors (see below), whose sum is σ = 1480836. Its totient is φ = 1475664.

The previous prime is 1478237. The next prime is 1478251. The reversal of 1478249 is 9428741.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 1155625 = 568^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1478249 - 2¹⁶ = 1412713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478209) 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, 14 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (370209).

2^1478249 is an apocalyptic number.

It is an amenable number.

1478249 is a deficient number, since it is larger than the sum of its proper divisors (2587).

1478249 is an equidigital number, since it uses as much as digits as its factorization.

1478249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its digits is 16128, while the sum is 35.

The square root of 1478249 is about 1215.8326365088. The cubic root of 1478249 is about 113.9154240856.

The spelling of 1478249 in words is "one million, four hundred seventy-eight thousand, two hundred forty-nine".