13451005 has 4 divisors (see below), whose sum is σ = 16141212. Its totient is φ = 10760800.

The previous prime is 13451003. The next prime is 13451033. The reversal of 13451005 is 50015431.

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 4468996 + 8982009 = 2114^2 + 2997^2 .

It is not a de Polignac number, because 13451005 - 2¹ = 13451003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13451003) 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 3 ways as a sum of consecutive naturals, for example, 1345096 + ... + 1345105.

It is an arithmetic number, because the mean of its divisors is an integer number (4035303).

Almost surely, 2^13451005 is an apocalyptic number.

It is an amenable number.

13451005 is a deficient number, since it is larger than the sum of its proper divisors (2690207).

13451005 is an equidigital number, since it uses as much as digits as its factorization.

13451005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690206.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 13451005 is about 3667.5611787672. The cubic root of 13451005 is about 237.8217541178.

Adding to 13451005 its reverse (50015431), we get a palindrome (63466436).

The spelling of 13451005 in words is "thirteen million, four hundred fifty-one thousand, five".