13145267 has 4 divisors (see below), whose sum is σ = 13918536. Its totient is φ = 12372000.

The previous prime is 13145263. The next prime is 13145269. The reversal of 13145267 is 76254131.

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

It is a cyclic number.

It is not a de Polignac number, because 13145267 - 2² = 13145263 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13145263) 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, 386609 + ... + 386642.

It is an arithmetic number, because the mean of its divisors is an integer number (3479634).

Almost surely, 2^13145267 is an apocalyptic number.

13145267 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13145267 is a deficient number, since it is larger than the sum of its proper divisors (773269).

13145267 is an equidigital number, since it uses as much as digits as its factorization.

13145267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773268.

The product of its digits is 5040, while the sum is 29.

The square root of 13145267 is about 3625.6402193268. The cubic root of 13145267 is about 236.0060505487.

Adding to 13145267 its reverse (76254131), we get a palindrome (89399398).

The spelling of 13145267 in words is "thirteen million, one hundred forty-five thousand, two hundred sixty-seven".