1423569 has 8 divisors (see below), whose sum is σ = 2169280. Its totient is φ = 813456.

The previous prime is 1423553. The next prime is 1423579. The reversal of 1423569 is 9653241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1423569 - 2⁴ = 1423553 is a prime.

It is a super-2 number, since 2×1423569² = 4053097395522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1423579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33874 + ... + 33915.

It is an arithmetic number, because the mean of its divisors is an integer number (271160).

2^1423569 is an apocalyptic number.

It is an amenable number.

1423569 is a deficient number, since it is larger than the sum of its proper divisors (745711).

1423569 is an equidigital number, since it uses as much as digits as its factorization.

1423569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67799.

The product of its digits is 6480, while the sum is 30.

The square root of 1423569 is about 1193.1341081371. The cubic root of 1423569 is about 112.4931748946.

The spelling of 1423569 in words is "one million, four hundred twenty-three thousand, five hundred sixty-nine".