461434510181 has 2 divisors, whose sum is σ = 461434510182. Its totient is φ = 461434510180.

The previous prime is 461434510111. The next prime is 461434510213. The reversal of 461434510181 is 181015434164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404707179556 + 56727330625 = 636166^2 + 238175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461434510181 is a prime.

It is a super-2 number, since 2×461434510181² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461434510111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230717255090 + 230717255091.

It is an arithmetic number, because the mean of its divisors is an integer number (230717255091).

Almost surely, 2^461434510181 is an apocalyptic number.

It is an amenable number.

461434510181 is a deficient number, since it is larger than the sum of its proper divisors (1).

461434510181 is an equidigital number, since it uses as much as digits as its factorization.

461434510181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 461434510181 in words is "four hundred sixty-one billion, four hundred thirty-four million, five hundred ten thousand, one hundred eighty-one".