12545845 has 8 divisors (see below), whose sum is σ = 16213176. Its totient is φ = 9264576.

The previous prime is 12545843. The next prime is 12545861. The reversal of 12545845 is 54854521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 12545764 = 9^2 + 3542^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12545845 - 2¹ = 12545843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12545845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96442 + ... + 96571.

It is an arithmetic number, because the mean of its divisors is an integer number (2026647).

Almost surely, 2^12545845 is an apocalyptic number.

It is an amenable number.

12545845 is a deficient number, since it is larger than the sum of its proper divisors (3667331).

12545845 is a wasteful number, since it uses less digits than its factorization.

12545845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193031.

The product of its digits is 32000, while the sum is 34.

The square root of 12545845 is about 3542.0114341995. The cubic root of 12545845 is about 232.3628203760.

The spelling of 12545845 in words is "twelve million, five hundred forty-five thousand, eight hundred forty-five".