12245445 has 32 divisors (see below), whose sum is σ = 22141440. Its totient is φ = 6419520.

The previous prime is 12245437. The next prime is 12245461. The reversal of 12245445 is 54454221.

It is not a de Polignac number, because 12245445 - 2³ = 12245437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7492 + ... + 8978.

It is an arithmetic number, because the mean of its divisors is an integer number (691920).

Almost surely, 2^12245445 is an apocalyptic number.

12245445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12245445 is a deficient number, since it is larger than the sum of its proper divisors (9895995).

12245445 is a wasteful number, since it uses less digits than its factorization.

12245445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562 (or 1556 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 12245445 is about 3499.3492252132. The cubic root of 12245445 is about 230.4932389012.

Adding to 12245445 its reverse (54454221), we get a palindrome (66699666).

The spelling of 12245445 in words is "twelve million, two hundred forty-five thousand, four hundred forty-five".