1423535 has 4 divisors (see below), whose sum is σ = 1708248. Its totient is φ = 1138824.

The previous prime is 1423511. The next prime is 1423547. The reversal of 1423535 is 5353241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5353241 = 193 ⋅27737.

It is a cyclic number.

It is not a de Polignac number, because 1423535 - 2¹⁴ = 1407151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1423535.

It is a congruent 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, 142349 + ... + 142358.

It is an arithmetic number, because the mean of its divisors is an integer number (427062).

2^1423535 is an apocalyptic number.

1423535 is a deficient number, since it is larger than the sum of its proper divisors (284713).

1423535 is an equidigital number, since it uses as much as digits as its factorization.

1423535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284712.

The product of its digits is 1800, while the sum is 23.

The square root of 1423535 is about 1193.1198598632. The cubic root of 1423535 is about 112.4922793055.

Adding to 1423535 its reverse (5353241), we get a palindrome (6776776).

The spelling of 1423535 in words is "one million, four hundred twenty-three thousand, five hundred thirty-five".