12534445 has 24 divisors (see below), whose sum is σ = 19091808. Its totient is φ = 7812000.

The previous prime is 12534443. The next prime is 12534461. The reversal of 12534445 is 54443521.

12534445 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12534445 - 2¹ = 12534443 is a prime.

It is a super-2 number, since 2×12534445² = 314224622916050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12534443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 370 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (795492).

Almost surely, 2^12534445 is an apocalyptic number.

It is an amenable number.

12534445 is a deficient number, since it is larger than the sum of its proper divisors (6557363).

12534445 is a wasteful number, since it uses less digits than its factorization.

12534445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4674 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 12534445 is about 3540.4018133540. The cubic root of 12534445 is about 232.2924188768.

Adding to 12534445 its reverse (54443521), we get a palindrome (66977966).

It can be divided in two parts, 125 and 34445, that multiplied together give a square (4305625 = 2075²).

The spelling of 12534445 in words is "twelve million, five hundred thirty-four thousand, four hundred forty-five".