12160381 has 2 divisors, whose sum is σ = 12160382. Its totient is φ = 12160380.

The previous prime is 12160349. The next prime is 12160403. The reversal of 12160381 is 18306121.

It is an a-pointer prime, because the next prime (12160403) can be obtained adding 12160381 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8357881 + 3802500 = 2891^2 + 1950^2 .

It is an emirp because it is prime and its reverse (18306121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12160381 - 2⁵ = 12160349 is a prime.

It is a super-2 number, since 2×12160381² = 295749732130322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12160301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6080190 + 6080191.

It is an arithmetic number, because the mean of its divisors is an integer number (6080191).

Almost surely, 2^12160381 is an apocalyptic number.

It is an amenable number.

12160381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12160381 is an equidigital number, since it uses as much as digits as its factorization.

12160381 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 12160381 is about 3487.1737840263. The cubic root of 12160381 is about 229.9582848101.

The spelling of 12160381 in words is "twelve million, one hundred sixty thousand, three hundred eighty-one".