1535223 has 8 divisors (see below), whose sum is σ = 2052736. Its totient is φ = 1020600.

The previous prime is 1535179. The next prime is 1535243. The reversal of 1535223 is 3225351.

1535223 is nontrivially palindromic in base 5.

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

It is not a de Polignac number, because 1535223 - 2¹⁶ = 1469687 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 1535223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1535243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1488 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (256592).

2^1535223 is an apocalyptic number.

1535223 is a deficient number, since it is larger than the sum of its proper divisors (517513).

1535223 is an equidigital number, since it uses as much as digits as its factorization.

1535223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445.

The product of its digits is 900, while the sum is 21.

The square root of 1535223 is about 1239.0411615439. The cubic root of 1535223 is about 115.3605069973.

The spelling of 1535223 in words is "one million, five hundred thirty-five thousand, two hundred twenty-three".