1048509 has 48 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 506880.

The previous prime is 1048507. The next prime is 1048517. The reversal of 1048509 is 9058401.

It is not a de Polignac number, because 1048509 - 2¹ = 1048507 is a prime.

It is a super-2 number, since 2×1048509² = 2198742246162, which contains 22 as substring.

1048509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11737 + ... + 11825.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2^1048509 is an apocalyptic number.

It is an amenable number.

1048509 is a deficient number, since it is larger than the sum of its proper divisors (973251).

1048509 is a wasteful number, since it uses less digits than its factorization.

1048509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1048509 is about 1023.9672846336. The cubic root of 1048509 is about 101.5915034642.

The spelling of 1048509 in words is "one million, forty-eight thousand, five hundred nine".