1421253 has 8 divisors (see below), whose sum is σ = 2105600. Its totient is φ = 947484.

The previous prime is 1421249. The next prime is 1421267. The reversal of 1421253 is 3521241.

It is not a de Polignac number, because 1421253 - 2² = 1421249 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 (1421213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26293 + ... + 26346.

It is an arithmetic number, because the mean of its divisors is an integer number (263200).

2^1421253 is an apocalyptic number.

It is an amenable number.

1421253 is a deficient number, since it is larger than the sum of its proper divisors (684347).

1421253 is an equidigital number, since it uses as much as digits as its factorization.

1421253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52648 (or 52642 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1421253 is about 1192.1631599743. The cubic root of 1421253 is about 112.4321368491.

Adding to 1421253 its reverse (3521241), we get a palindrome (4942494).

The spelling of 1421253 in words is "one million, four hundred twenty-one thousand, two hundred fifty-three".