13403045 has 4 divisors (see below), whose sum is σ = 16083660. Its totient is φ = 10722432.

The previous prime is 13403041. The next prime is 13403053. The reversal of 13403045 is 54030431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6880129 + 6522916 = 2623^2 + 2554^2 .

It is a cyclic number.

It is not a de Polignac number, because 13403045 - 2² = 13403041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13403041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1340300 + ... + 1340309.

It is an arithmetic number, because the mean of its divisors is an integer number (4020915).

Almost surely, 2^13403045 is an apocalyptic number.

It is an amenable number.

13403045 is a deficient number, since it is larger than the sum of its proper divisors (2680615).

13403045 is an equidigital number, since it uses as much as digits as its factorization.

13403045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680614.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13403045 is about 3661.0169352244. The cubic root of 13403045 is about 237.5387637559.

Adding to 13403045 its reverse (54030431), we get a palindrome (67433476).

The spelling of 13403045 in words is "thirteen million, four hundred three thousand, forty-five".