1442145 has 16 divisors (see below), whose sum is σ = 2338560. Its totient is φ = 758784.

The previous prime is 1442143. The next prime is 1442159. The reversal of 1442145 is 5412441.

It is a happy number.

It is not a de Polignac number, because 1442145 - 2¹ = 1442143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1442143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (146160).

2^1442145 is an apocalyptic number.

1442145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1442145 is a deficient number, since it is larger than the sum of its proper divisors (896415).

1442145 is a wasteful number, since it uses less digits than its factorization.

1442145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304.

The product of its digits is 640, while the sum is 21.

The square root of 1442145 is about 1200.8934174189. The cubic root of 1442145 is about 112.9803657118.

Adding to 1442145 its reverse (5412441), we get a palindrome (6854586).

The spelling of 1442145 in words is "one million, four hundred forty-two thousand, one hundred forty-five".