1528469 has 2 divisors, whose sum is σ = 1528470. Its totient is φ = 1528468.

The previous prime is 1528463. The next prime is 1528529. The reversal of 1528469 is 9648251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020100 + 508369 = 1010^2 + 713^2 .

It is an emirp because it is prime and its reverse (9648251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1528469 - 2¹⁶ = 1462933 is a prime.

It is a super-2 number, since 2×1528469² = 4672434967922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1528463) 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 as a sum of consecutive naturals, namely, 764234 + 764235.

It is an arithmetic number, because the mean of its divisors is an integer number (764235).

2^1528469 is an apocalyptic number.

It is an amenable number.

1528469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1528469 is an equidigital number, since it uses as much as digits as its factorization.

1528469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 1528469 is about 1236.3126627193. The cubic root of 1528469 is about 115.1910874744.

The spelling of 1528469 in words is "one million, five hundred twenty-eight thousand, four hundred sixty-nine".