481043861 has 2 divisors, whose sum is σ = 481043862. Its totient is φ = 481043860.

The previous prime is 481043837. The next prime is 481043863. The reversal of 481043861 is 168340184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439698961 + 41344900 = 20969^2 + 6430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481043861 is a prime.

It is a super-3 number, since 3×481043861³ (a number of 27 digits) contains 333 as substring.

Together with 481043863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (481043863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 240521930 + 240521931.

It is an arithmetic number, because the mean of its divisors is an integer number (240521931).

Almost surely, 2^481043861 is an apocalyptic number.

It is an amenable number.

481043861 is a deficient number, since it is larger than the sum of its proper divisors (1).

481043861 is an equidigital number, since it uses as much as digits as its factorization.

481043861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 481043861 is about 21932.7121213953. The cubic root of 481043861 is about 783.5406975185.

The spelling of 481043861 in words is "four hundred eighty-one million, forty-three thousand, eight hundred sixty-one".