1424155 has 4 divisors (see below), whose sum is σ = 1708992. Its totient is φ = 1139320.

The previous prime is 1424149. The next prime is 1424177. The reversal of 1424155 is 5514241.

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

It is not a de Polignac number, because 1424155 - 2⁵ = 1424123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142411 + ... + 142420.

It is an arithmetic number, because the mean of its divisors is an integer number (427248).

2^1424155 is an apocalyptic number.

1424155 is a deficient number, since it is larger than the sum of its proper divisors (284837).

1424155 is an equidigital number, since it uses as much as digits as its factorization.

1424155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284836.

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

The square root of 1424155 is about 1193.3796545945. The cubic root of 1424155 is about 112.5086083948.

Adding to 1424155 its reverse (5514241), we get a palindrome (6938396).

The spelling of 1424155 in words is "one million, four hundred twenty-four thousand, one hundred fifty-five".