12452522 has 16 divisors (see below), whose sum is σ = 19619712. Its totient is φ = 5916240.

The previous prime is 12452501. The next prime is 12452527. The reversal of 12452522 is 22525421.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12452527) 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, 6872 + ... + 8492.

It is an arithmetic number, because the mean of its divisors is an integer number (1226232).

Almost surely, 2^12452522 is an apocalyptic number.

12452522 is a deficient number, since it is larger than the sum of its proper divisors (7167190).

12452522 is a wasteful number, since it uses less digits than its factorization.

12452522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813.

The product of its digits is 1600, while the sum is 23.

The square root of 12452522 is about 3528.8131149156. The cubic root of 12452522 is about 231.7852377404.

Adding to 12452522 its sum of digits (23), we get a triangular number (12452545 = T₄₉₉₀).

Adding to 12452522 its reverse (22525421), we get a palindrome (34977943).

The spelling of 12452522 in words is "twelve million, four hundred fifty-two thousand, five hundred twenty-two".