2173522 has 8 divisors (see below), whose sum is σ = 3511116. Its totient is φ = 1003152.

The previous prime is 2173519. The next prime is 2173529. The reversal of 2173522 is 2253712.

It can be written as a sum of positive squares in 2 ways, for example, as 2105401 + 68121 = 1451^2 + 261^2 .

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

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2173493 and 2173502.

It is not an unprimeable number, because it can be changed into a prime (2173529) 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, 41773 + ... + 41824.

2^2173522 is an apocalyptic number.

2173522 is a deficient number, since it is larger than the sum of its proper divisors (1337594).

2173522 is a wasteful number, since it uses less digits than its factorization.

2173522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83612.

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

The square root of 2173522 is about 1474.2869462896. The cubic root of 2173522 is about 129.5352636732.

The spelling of 2173522 in words is "two million, one hundred seventy-three thousand, five hundred twenty-two".