6354442181 has 2 divisors, whose sum is σ = 6354442182. Its totient is φ = 6354442180.

The previous prime is 6354442109. The next prime is 6354442247. The reversal of 6354442181 is 1812444536.

It is a happy number.

6354442181 is digitally balanced in base 3, 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., 4591282081 + 1763160100 = 67759^2 + 41990^2 .

It is a cyclic number.

It is not a de Polignac number, because 6354442181 - 2³⁰ = 5280700357 is a prime.

It is a super-2 number, since 2×6354442181² = 80757870863344073522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6354442781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3177221090 + 3177221091.

It is an arithmetic number, because the mean of its divisors is an integer number (3177221091).

Almost surely, 2^6354442181 is an apocalyptic number.

It is an amenable number.

6354442181 is a deficient number, since it is larger than the sum of its proper divisors (1).

6354442181 is an equidigital number, since it uses as much as digits as its factorization.

6354442181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 38.

The square root of 6354442181 is about 79714.7551021767. The cubic root of 6354442181 is about 1852.2196081908.

The spelling of 6354442181 in words is "six billion, three hundred fifty-four million, four hundred forty-two thousand, one hundred eighty-one".