1048485209 has 4 divisors (see below), whose sum is σ = 1051835316. Its totient is φ = 1045135104.

The previous prime is 1048485157. The next prime is 1048485223. The reversal of 1048485209 is 9025848401.

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 13897984 + 1034587225 = 3728^2 + 32165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1048485209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1048485239) 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, 1674584 + ... + 1675209.

It is an arithmetic number, because the mean of its divisors is an integer number (262958829).

Almost surely, 2^1048485209 is an apocalyptic number.

It is an amenable number.

1048485209 is a deficient number, since it is larger than the sum of its proper divisors (3350107).

1048485209 is an equidigital number, since it uses as much as digits as its factorization.

1048485209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350106.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 1048485209 is about 32380.3213232976. The cubic root of 1048485209 is about 1015.9073507725.

The spelling of 1048485209 in words is "one billion, forty-eight million, four hundred eighty-five thousand, two hundred nine".