13571265 has 32 divisors (see below), whose sum is σ = 22901760. Its totient is φ = 6849216.

The previous prime is 13571249. The next prime is 13571281. The reversal of 13571265 is 56217531.

It is an interprime number because it is at equal distance from previous prime (13571249) and next prime (13571281).

It is not a de Polignac number, because 13571265 - 2⁴ = 13571249 is a prime.

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, 47814 + ... + 48096.

It is an arithmetic number, because the mean of its divisors is an integer number (715680).

Almost surely, 2^13571265 is an apocalyptic number.

13571265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13571265 is a deficient number, since it is larger than the sum of its proper divisors (9330495).

13571265 is a wasteful number, since it uses less digits than its factorization.

13571265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its digits is 6300, while the sum is 30.

The square root of 13571265 is about 3683.9197874004. The cubic root of 13571265 is about 238.5284083790.

Adding to 13571265 its reverse (56217531), we get a palindrome (69788796).

The spelling of 13571265 in words is "thirteen million, five hundred seventy-one thousand, two hundred sixty-five".