13261357 has 2 divisors, whose sum is σ = 13261358. Its totient is φ = 13261356.

The previous prime is 13261349. The next prime is 13261403. The reversal of 13261357 is 75316231.

13261357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12574116 + 687241 = 3546^2 + 829^2 .

It is a cyclic number.

It is not a de Polignac number, because 13261357 - 2³ = 13261349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13261307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6630678 + 6630679.

It is an arithmetic number, because the mean of its divisors is an integer number (6630679).

Almost surely, 2^13261357 is an apocalyptic number.

It is an amenable number.

13261357 is a deficient number, since it is larger than the sum of its proper divisors (1).

13261357 is an equidigital number, since it uses as much as digits as its factorization.

13261357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 13261357 is about 3641.6146144259. The cubic root of 13261357 is about 236.6987633076.

Adding to 13261357 its reverse (75316231), we get a palindrome (88577588).

The spelling of 13261357 in words is "thirteen million, two hundred sixty-one thousand, three hundred fifty-seven".