13261337 has 4 divisors (see below), whose sum is σ = 13271076. Its totient is φ = 13251600.

The previous prime is 13261333. The next prime is 13261349. The reversal of 13261337 is 73316231.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 73316231 = 19 ⋅3858749.

It can be written as a sum of positive squares in 2 ways, for example, as 7639696 + 5621641 = 2764^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 13261337 - 2² = 13261333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13261331) 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, 2414 + ... + 5687.

It is an arithmetic number, because the mean of its divisors is an integer number (3317769).

Almost surely, 2^13261337 is an apocalyptic number.

It is an amenable number.

13261337 is a deficient number, since it is larger than the sum of its proper divisors (9739).

13261337 is an equidigital number, since it uses as much as digits as its factorization.

13261337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9738.

The product of its digits is 2268, while the sum is 26.

The square root of 13261337 is about 3641.6118683902. The cubic root of 13261337 is about 236.6986443158.

Adding to 13261337 its reverse (73316231), we get a palindrome (86577568).

The spelling of 13261337 in words is "thirteen million, two hundred sixty-one thousand, three hundred thirty-seven".