1301209 has 16 divisors (see below), whose sum is σ = 1630720. Its totient is φ = 1010880.

The previous prime is 1301173. The next prime is 1301219. The reversal of 1301209 is 9021031.

It is not a de Polignac number, because 1301209 - 2⁷ = 1301081 is a prime.

1301209 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1301192 and 1301201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7099 + ... + 7279.

It is an arithmetic number, because the mean of its divisors is an integer number (101920).

2^1301209 is an apocalyptic number.

It is an amenable number.

1301209 is a deficient number, since it is larger than the sum of its proper divisors (329511).

1301209 is a wasteful number, since it uses less digits than its factorization.

1301209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1301209 is about 1140.7054834619. The cubic root of 1301209 is about 109.1731110026.

The spelling of 1301209 in words is "one million, three hundred one thousand, two hundred nine".