1253423 has 4 divisors (see below), whose sum is σ = 1293888. Its totient is φ = 1212960.

The previous prime is 1253401. The next prime is 1253437. The reversal of 1253423 is 3243521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1253423 - 2⁸ = 1253167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253395 and 1253404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253453) 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, 20186 + ... + 20247.

It is an arithmetic number, because the mean of its divisors is an integer number (323472).

2^1253423 is an apocalyptic number.

1253423 is a deficient number, since it is larger than the sum of its proper divisors (40465).

1253423 is an equidigital number, since it uses as much as digits as its factorization.

1253423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40464.

The product of its digits is 720, while the sum is 20.

The square root of 1253423 is about 1119.5637543258. The cubic root of 1253423 is about 107.8199732830.

Adding to 1253423 its reverse (3243521), we get a palindrome (4496944).

It can be divided in two parts, 12 and 53423, that added together give a palindrome (53435).

The spelling of 1253423 in words is "one million, two hundred fifty-three thousand, four hundred twenty-three".