13771801 has 2 divisors, whose sum is σ = 13771802. Its totient is φ = 13771800.

The previous prime is 13771763. The next prime is 13771829. The reversal of 13771801 is 10817731.

It is an a-pointer prime, because the next prime (13771829) can be obtained adding 13771801 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12960000 + 811801 = 3600^2 + 901^2 .

It is a cyclic number.

It is not a de Polignac number, because 13771801 - 2¹¹ = 13769753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13771801.

It is not a weakly prime, because it can be changed into another prime (13771001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6885900 + 6885901.

It is an arithmetic number, because the mean of its divisors is an integer number (6885901).

Almost surely, 2^13771801 is an apocalyptic number.

It is an amenable number.

13771801 is a deficient number, since it is larger than the sum of its proper divisors (1).

13771801 is an equidigital number, since it uses as much as digits as its factorization.

13771801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 13771801 is about 3711.0377254887. The cubic root of 13771801 is about 239.6975414422.

The spelling of 13771801 in words is "thirteen million, seven hundred seventy-one thousand, eight hundred one".