13812045 has 32 divisors (see below), whose sum is σ = 23987712. Its totient is φ = 6746112.

The previous prime is 13812037. The next prime is 13812059. The reversal of 13812045 is 54021831.

It is not a de Polignac number, because 13812045 - 2³ = 13812037 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 31 ways as a sum of consecutive naturals, for example, 37452 + ... + 37818.

It is an arithmetic number, because the mean of its divisors is an integer number (749616).

Almost surely, 2^13812045 is an apocalyptic number.

13812045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13812045 is a deficient number, since it is larger than the sum of its proper divisors (10175667).

13812045 is a wasteful number, since it uses less digits than its factorization.

13812045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 13812045 is about 3716.4559731013. The cubic root of 13812045 is about 239.9307960192.

Adding to 13812045 its reverse (54021831), we get a palindrome (67833876).

The spelling of 13812045 in words is "thirteen million, eight hundred twelve thousand, forty-five".