1048309 has 2 divisors, whose sum is σ = 1048310. Its totient is φ = 1048308.

The previous prime is 1048291. The next prime is 1048343. The reversal of 1048309 is 9038401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 485809 = 750^2 + 697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048309 - 2¹⁵ = 1015541 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1048009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524154 + 524155.

It is an arithmetic number, because the mean of its divisors is an integer number (524155).

2^1048309 is an apocalyptic number.

It is an amenable number.

1048309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1048309 is an equidigital number, since it uses as much as digits as its factorization.

1048309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1048309 is about 1023.8696206061. The cubic root of 1048309 is about 101.5850436268.

The spelling of 1048309 in words is "one million, forty-eight thousand, three hundred nine".