12380161 has 2 divisors, whose sum is σ = 12380162. Its totient is φ = 12380160.

The previous prime is 12380149. The next prime is 12380171. The reversal of 12380161 is 16108321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11771761 + 608400 = 3431^2 + 780^2 .

It is an emirp because it is prime and its reverse (16108321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12380161 - 2⁷ = 12380033 is a prime.

It is not a weakly prime, because it can be changed into another prime (12380101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190080 + 6190081.

It is an arithmetic number, because the mean of its divisors is an integer number (6190081).

Almost surely, 2^12380161 is an apocalyptic number.

It is an amenable number.

12380161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12380161 is an equidigital number, since it uses as much as digits as its factorization.

12380161 is an evil number, because the sum of its binary digits is even.

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

The square root of 12380161 is about 3518.5452959995. The cubic root of 12380161 is about 231.3354010359.

Adding to 12380161 its reverse (16108321), we get a palindrome (28488482).

The spelling of 12380161 in words is "twelve million, three hundred eighty thousand, one hundred sixty-one".