1522523 has 4 divisors (see below), whose sum is σ = 1539720. Its totient is φ = 1505328.

The previous prime is 1522517. The next prime is 1522541. The reversal of 1522523 is 3252251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3252251 = 179 ⋅18169.

It is a cyclic number.

It is not a de Polignac number, because 1522523 - 2⁶ = 1522459 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1522495 and 1522504.

It is not an unprimeable number, because it can be changed into a prime (1522553) 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, 8465 + ... + 8642.

It is an arithmetic number, because the mean of its divisors is an integer number (384930).

2^1522523 is an apocalyptic number.

1522523 is a deficient number, since it is larger than the sum of its proper divisors (17197).

1522523 is an equidigital number, since it uses as much as digits as its factorization.

1522523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17196.

The product of its digits is 600, while the sum is 20.

The square root of 1522523 is about 1233.9055879604. The cubic root of 1522523 is about 115.0415224980.

Adding to 1522523 its reverse (3252251), we get a palindrome (4774774).

The spelling of 1522523 in words is "one million, five hundred twenty-two thousand, five hundred twenty-three".