1447121 has 4 divisors (see below), whose sum is σ = 1558452. Its totient is φ = 1335792.

The previous prime is 1447099. The next prime is 1447123. The reversal of 1447121 is 1217441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1217441 = 47 ⋅25903.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 748225 = 836^2 + 865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447121 - 2¹⁰ = 1446097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1447093 and 1447102.

It is not an unprimeable number, because it can be changed into a prime (1447123) 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, 55646 + ... + 55671.

It is an arithmetic number, because the mean of its divisors is an integer number (389613).

2^1447121 is an apocalyptic number.

It is an amenable number.

1447121 is a deficient number, since it is larger than the sum of its proper divisors (111331).

1447121 is a wasteful number, since it uses less digits than its factorization.

1447121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111330.

The product of its digits is 224, while the sum is 20.

The square root of 1447121 is about 1202.9634242154. The cubic root of 1447121 is about 113.1101596275.

The spelling of 1447121 in words is "one million, four hundred forty-seven thousand, one hundred twenty-one".