13770161 has 2 divisors, whose sum is σ = 13770162. Its totient is φ = 13770160.

The previous prime is 13770149. The next prime is 13770167. The reversal of 13770161 is 16107731.

13770161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9339136 + 4431025 = 3056^2 + 2105^2 .

It is a cyclic number.

It is not a de Polignac number, because 13770161 - 2¹⁸ = 13508017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13770161.

It is not a weakly prime, because it can be changed into another prime (13770167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6885080 + 6885081.

It is an arithmetic number, because the mean of its divisors is an integer number (6885081).

Almost surely, 2^13770161 is an apocalyptic number.

It is an amenable number.

13770161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13770161 is an equidigital number, since it uses as much as digits as its factorization.

13770161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 13770161 is about 3710.8167564567. The cubic root of 13770161 is about 239.6880263572.

Adding to 13770161 its reverse (16107731), we get a palindrome (29877892).

It can be divided in two parts, 13770 and 161, that added together give a palindrome (13931).

The spelling of 13770161 in words is "thirteen million, seven hundred seventy thousand, one hundred sixty-one".