461218547 has 2 divisors, whose sum is σ = 461218548. Its totient is φ = 461218546.

The previous prime is 461218543. The next prime is 461218591. The reversal of 461218547 is 745812164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461218547 - 2² = 461218543 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461218547.

It is not a weakly prime, because it can be changed into another prime (461218543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230609273 + 230609274.

It is an arithmetic number, because the mean of its divisors is an integer number (230609274).

Almost surely, 2^461218547 is an apocalyptic number.

461218547 is a deficient number, since it is larger than the sum of its proper divisors (1).

461218547 is an equidigital number, since it uses as much as digits as its factorization.

461218547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53760, while the sum is 38.

The square root of 461218547 is about 21475.9993248277. Note that the first 3 decimals coincide. The cubic root of 461218547 is about 772.6252926368.

The spelling of 461218547 in words is "four hundred sixty-one million, two hundred eighteen thousand, five hundred forty-seven".