13451265 has 24 divisors (see below), whose sum is σ = 24181248. Its totient is φ = 7173360.

The previous prime is 13451257. The next prime is 13451279. The reversal of 13451265 is 56215431.

It is not a de Polignac number, because 13451265 - 2³ = 13451257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4321 + ... + 6750.

It is an arithmetic number, because the mean of its divisors is an integer number (1007552).

It is a Proth number, since it is equal to 821 ⋅ 2¹⁴ + 1 and 821 < 2¹⁴.

Almost surely, 2^13451265 is an apocalyptic number.

13451265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13451265 is a deficient number, since it is larger than the sum of its proper divisors (10729983).

13451265 is an equidigital number, since it uses as much as digits as its factorization.

13451265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091 (or 11079 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13451265 is about 3667.5966244940. The cubic root of 13451265 is about 237.8232864260.

Adding to 13451265 its reverse (56215431), we get a palindrome (69666696).

The spelling of 13451265 in words is "thirteen million, four hundred fifty-one thousand, two hundred sixty-five".