1528249 has 4 divisors (see below), whose sum is σ = 1618164. Its totient is φ = 1438336.

The previous prime is 1528243. The next prime is 1528253. The reversal of 1528249 is 9428251.

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 705600 + 822649 = 840^2 + 907^2 .

It is not a de Polignac number, because 1528249 - 2⁹ = 1527737 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 1528249.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1528243) 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, 44932 + ... + 44965.

It is an arithmetic number, because the mean of its divisors is an integer number (404541).

2^1528249 is an apocalyptic number.

It is an amenable number.

1528249 is a deficient number, since it is larger than the sum of its proper divisors (89915).

1528249 is an equidigital number, since it uses as much as digits as its factorization.

1528249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89914.

The product of its digits is 5760, while the sum is 31.

The square root of 1528249 is about 1236.2236852609. The cubic root of 1528249 is about 115.1855605375.

The spelling of 1528249 in words is "one million, five hundred twenty-eight thousand, two hundred forty-nine".