1572223 has 4 divisors (see below), whose sum is σ = 1576288. Its totient is φ = 1568160.

The previous prime is 1572217. The next prime is 1572239. The reversal of 1572223 is 3222751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3222751 = 7 ⋅460393.

It is a cyclic number.

It is not a de Polignac number, because 1572223 - 2⁵ = 1572191 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 1572194 and 1572203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572203) 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, 1383 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (394072).

2^1572223 is an apocalyptic number.

1572223 is a deficient number, since it is larger than the sum of its proper divisors (4065).

1572223 is an equidigital number, since it uses as much as digits as its factorization.

1572223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064.

The product of its digits is 840, while the sum is 22.

The square root of 1572223 is about 1253.8831684013. The cubic root of 1572223 is about 116.2799175321.

Adding to 1572223 its reverse (3222751), we get a palindrome (4794974).

The spelling of 1572223 in words is "one million, five hundred seventy-two thousand, two hundred twenty-three".