12445526 has 4 divisors (see below), whose sum is σ = 18668292. Its totient is φ = 6222762.

The previous prime is 12445501. The next prime is 12445529. The reversal of 12445526 is 62554421.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12445526² = 309782234833352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3111380 + ... + 3111383.

It is an arithmetic number, because the mean of its divisors is an integer number (4667073).

Almost surely, 2^12445526 is an apocalyptic number.

12445526 is a deficient number, since it is larger than the sum of its proper divisors (6222766).

12445526 is an equidigital number, since it uses as much as digits as its factorization.

12445526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6222765.

The product of its digits is 9600, while the sum is 29.

The square root of 12445526 is about 3527.8217075130. The cubic root of 12445526 is about 231.7418228859.

Adding to 12445526 its reverse (62554421), we get a palindrome (74999947).

The spelling of 12445526 in words is "twelve million, four hundred forty-five thousand, five hundred twenty-six".