412321181 has 2 divisors, whose sum is σ = 412321182. Its totient is φ = 412321180.

The previous prime is 412321157. The next prime is 412321187. The reversal of 412321181 is 181123214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405377956 + 6943225 = 20134^2 + 2635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412321181 is a prime.

It is a super-2 number, since 2×412321181² = 340017512602469522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412321187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206160590 + 206160591.

It is an arithmetic number, because the mean of its divisors is an integer number (206160591).

Almost surely, 2^412321181 is an apocalyptic number.

It is an amenable number.

412321181 is a deficient number, since it is larger than the sum of its proper divisors (1).

412321181 is an equidigital number, since it uses as much as digits as its factorization.

412321181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 23.

The square root of 412321181 is about 20305.6933149302. The cubic root of 412321181 is about 744.2951945782.

Adding to 412321181 its reverse (181123214), we get a palindrome (593444395).

The spelling of 412321181 in words is "four hundred twelve million, three hundred twenty-one thousand, one hundred eighty-one".