13265381 has 2 divisors, whose sum is σ = 13265382. Its totient is φ = 13265380.

The previous prime is 13265353. The next prime is 13265419. The reversal of 13265381 is 18356231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9205156 + 4060225 = 3034^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 13265381 - 2¹⁰ = 13264357 is a prime.

It is a super-2 number, since 2×13265381² = 351940666150322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13265081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6632690 + 6632691.

It is an arithmetic number, because the mean of its divisors is an integer number (6632691).

Almost surely, 2^13265381 is an apocalyptic number.

It is an amenable number.

13265381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13265381 is an equidigital number, since it uses as much as digits as its factorization.

13265381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 13265381 is about 3642.1670746961. The cubic root of 13265381 is about 236.7227020217.

The spelling of 13265381 in words is "thirteen million, two hundred sixty-five thousand, three hundred eighty-one".