13801261 has 2 divisors, whose sum is σ = 13801262. Its totient is φ = 13801260.

The previous prime is 13801213. The next prime is 13801273. The reversal of 13801261 is 16210831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 36 = 3715^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 13801261 - 2¹⁹ = 13276973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13801561) 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, 6900630 + 6900631.

It is an arithmetic number, because the mean of its divisors is an integer number (6900631).

Almost surely, 2^13801261 is an apocalyptic number.

It is an amenable number.

13801261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13801261 is an equidigital number, since it uses as much as digits as its factorization.

13801261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 13801261 is about 3715.0048452189. The cubic root of 13801261 is about 239.8683363475.

The spelling of 13801261 in words is "thirteen million, eight hundred one thousand, two hundred sixty-one".