1452209 has 4 divisors (see below), whose sum is σ = 1584240. Its totient is φ = 1320180.

The previous prime is 1452203. The next prime is 1452211. The reversal of 1452209 is 9022541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9022541 = 11 ⋅820231.

It is a cyclic number.

It is not a de Polignac number, because 1452209 - 2⁴ = 1452193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1452203) 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, 65999 + ... + 66020.

It is an arithmetic number, because the mean of its divisors is an integer number (396060).

2^1452209 is an apocalyptic number.

It is an amenable number.

1452209 is a deficient number, since it is larger than the sum of its proper divisors (132031).

1452209 is a wasteful number, since it uses less digits than its factorization.

1452209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132030.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1452209 is about 1205.0763461292. The cubic root of 1452209 is about 113.2425676582.

It can be divided in two parts, 1452 and 209, that added together give a palindrome (1661).

The spelling of 1452209 in words is "one million, four hundred fifty-two thousand, two hundred nine".