1420255 has 4 divisors (see below), whose sum is σ = 1704312. Its totient is φ = 1136200.

The previous prime is 1420253. The next prime is 1420259. The reversal of 1420255 is 5520241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5520241 = 19 ⋅290539.

It is not a de Polignac number, because 1420255 - 2¹ = 1420253 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420253) 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, 142021 + ... + 142030.

It is an arithmetic number, because the mean of its divisors is an integer number (426078).

2^1420255 is an apocalyptic number.

1420255 is a deficient number, since it is larger than the sum of its proper divisors (284057).

1420255 is an equidigital number, since it uses as much as digits as its factorization.

1420255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284056.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1420255 is about 1191.7445196014. The cubic root of 1420255 is about 112.4058141731.

Adding to 1420255 its reverse (5520241), we get a palindrome (6940496).

The spelling of 1420255 in words is "one million, four hundred twenty thousand, two hundred fifty-five".