1442147 has 4 divisors (see below), whose sum is σ = 1648176. Its totient is φ = 1236120.

The previous prime is 1442143. The next prime is 1442159. The reversal of 1442147 is 7412441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1442147 - 2² = 1442143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442143) 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, 103004 + ... + 103017.

It is an arithmetic number, because the mean of its divisors is an integer number (412044).

2^1442147 is an apocalyptic number.

1442147 is a deficient number, since it is larger than the sum of its proper divisors (206029).

1442147 is an equidigital number, since it uses as much as digits as its factorization.

1442147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206028.

The product of its digits is 896, while the sum is 23.

The square root of 1442147 is about 1200.8942501320. The cubic root of 1442147 is about 112.9804179397.

Adding to 1442147 its reverse (7412441), we get a palindrome (8854588).

The spelling of 1442147 in words is "one million, four hundred forty-two thousand, one hundred forty-seven".