1434209 has 4 divisors (see below), whose sum is σ = 1639104. Its totient is φ = 1229316.

The previous prime is 1434203. The next prime is 1434217. The reversal of 1434209 is 9024341.

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: 9024341 = 83 ⋅108727.

It is a cyclic number.

It is not a de Polignac number, because 1434209 - 2⁸ = 1433953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1434203) 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, 102437 + ... + 102450.

It is an arithmetic number, because the mean of its divisors is an integer number (409776).

2^1434209 is an apocalyptic number.

It is an amenable number.

1434209 is a deficient number, since it is larger than the sum of its proper divisors (204895).

1434209 is an equidigital number, since it uses as much as digits as its factorization.

1434209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204894.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1434209 is about 1197.5846525403. The cubic root of 1434209 is about 112.7727439889.

The spelling of 1434209 in words is "one million, four hundred thirty-four thousand, two hundred nine".