13042845 has 12 divisors (see below), whose sum is σ = 22607676. Its totient is φ = 6956160.

The previous prime is 13042819. The next prime is 13042853. The reversal of 13042845 is 54824031.

It can be written as a sum of positive squares in 2 ways, for example, as 8259876 + 4782969 = 2874^2 + 2187^2 .

It is not a de Polignac number, because 13042845 - 2⁹ = 13042333 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 144876 + ... + 144965.

It is an arithmetic number, because the mean of its divisors is an integer number (1883973).

Almost surely, 2^13042845 is an apocalyptic number.

13042845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13042845 is a deficient number, since it is larger than the sum of its proper divisors (9564831).

13042845 is a wasteful number, since it uses less digits than its factorization.

13042845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289852 (or 289849 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 13042845 is about 3611.4879205114. The cubic root of 13042845 is about 235.3915007253.

Adding to 13042845 its reverse (54824031), we get a palindrome (67866876).

The spelling of 13042845 in words is "thirteen million, forty-two thousand, eight hundred forty-five".