1329227 has 4 divisors (see below), whose sum is σ = 1331760. Its totient is φ = 1326696.

The previous prime is 1329217. The next prime is 1329233. The reversal of 1329227 is 7229231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7229231 = 31 ⋅233201.

It is a cyclic number.

It is not a de Polignac number, because 1329227 - 2¹⁰ = 1328203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1329196 and 1329205.

It is not an unprimeable number, because it can be changed into a prime (1329217) 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, 152 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (332940).

2^1329227 is an apocalyptic number.

1329227 is a deficient number, since it is larger than the sum of its proper divisors (2533).

1329227 is an equidigital number, since it uses as much as digits as its factorization.

1329227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its digits is 1512, while the sum is 26.

The square root of 1329227 is about 1152.9210727539. The cubic root of 1329227 is about 109.9511353211.

The spelling of 1329227 in words is "one million, three hundred twenty-nine thousand, two hundred twenty-seven".