1522423 has 4 divisors (see below), whose sum is σ = 1739920. Its totient is φ = 1304928.

The previous prime is 1522399. The next prime is 1522427. The reversal of 1522423 is 3242251.

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 1522423 - 2¹³ = 1514231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1522423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522427) 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, 108738 + ... + 108751.

It is an arithmetic number, because the mean of its divisors is an integer number (434980).

2^1522423 is an apocalyptic number.

1522423 is a deficient number, since it is larger than the sum of its proper divisors (217497).

1522423 is an equidigital number, since it uses as much as digits as its factorization.

1522423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217496.

The product of its digits is 480, while the sum is 19.

The square root of 1522423 is about 1233.8650655562. The cubic root of 1522423 is about 115.0390037831.

Adding to 1522423 its reverse (3242251), we get a palindrome (4764674).

The spelling of 1522423 in words is "one million, five hundred twenty-two thousand, four hundred twenty-three".