63441181 has 2 divisors, whose sum is σ = 63441182. Its totient is φ = 63441180.

The previous prime is 63441179. The next prime is 63441233. The reversal of 63441181 is 18114436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42693156 + 20748025 = 6534^2 + 4555^2 .

It is a cyclic number.

It is not a de Polignac number, because 63441181 - 2¹ = 63441179 is a prime.

It is a super-2 number, since 2×63441181² = 8049566893349522, which contains 22 as substring.

Together with 63441179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63441481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31720590 + 31720591.

It is an arithmetic number, because the mean of its divisors is an integer number (31720591).

Almost surely, 2^63441181 is an apocalyptic number.

It is an amenable number.

63441181 is a deficient number, since it is larger than the sum of its proper divisors (1).

63441181 is an equidigital number, since it uses as much as digits as its factorization.

63441181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 63441181 is about 7964.9972379154. The cubic root of 63441181 is about 398.8323887764.

The spelling of 63441181 in words is "sixty-three million, four hundred forty-one thousand, one hundred eighty-one".