1442155 has 16 divisors (see below), whose sum is σ = 2034144. Its totient is φ = 967680.

The previous prime is 1442143. The next prime is 1442159. The reversal of 1442155 is 5512441.

It is not a de Polignac number, because 1442155 - 2¹¹ = 1440107 is a prime.

It is a super-2 number, since 2×1442155² = 4159622088050, which contains 22 as substring.

It is a Duffinian number.

1442155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1442159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (127134).

2^1442155 is an apocalyptic number.

1442155 is a deficient number, since it is larger than the sum of its proper divisors (591989).

1442155 is a wasteful number, since it uses less digits than its factorization.

1442155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its digits is 800, while the sum is 22.

The square root of 1442155 is about 1200.8975809785. The cubic root of 1442155 is about 112.9806268508.

Adding to 1442155 its reverse (5512441), we get a palindrome (6954596).

The spelling of 1442155 in words is "one million, four hundred forty-two thousand, one hundred fifty-five".