1420253 has 2 divisors, whose sum is σ = 1420254. Its totient is φ = 1420252.

The previous prime is 1420207. The next prime is 1420259. The reversal of 1420253 is 3520241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 375769 = 1022^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420253 - 2¹⁴ = 1403869 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710126 + 710127.

It is an arithmetic number, because the mean of its divisors is an integer number (710127).

2^1420253 is an apocalyptic number.

It is an amenable number.

1420253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420253 is an equidigital number, since it uses as much as digits as its factorization.

1420253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1420253 is about 1191.7436804951. The cubic root of 1420253 is about 112.4057614098.

Adding to 1420253 its reverse (3520241), we get a palindrome (4940494).

The spelling of 1420253 in words is "one million, four hundred twenty thousand, two hundred fifty-three".