461123129 has 2 divisors, whose sum is σ = 461123130. Its totient is φ = 461123128.

The previous prime is 461123123. The next prime is 461123149. The reversal of 461123129 is 921321164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251539600 + 209583529 = 15860^2 + 14477^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461123129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461123123) 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, 230561564 + 230561565.

It is an arithmetic number, because the mean of its divisors is an integer number (230561565).

Almost surely, 2^461123129 is an apocalyptic number.

It is an amenable number.

461123129 is a deficient number, since it is larger than the sum of its proper divisors (1).

461123129 is an equidigital number, since it uses as much as digits as its factorization.

461123129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 461123129 is about 21473.7777067753. Note that the first 4 decimals coincide. The cubic root of 461123129 is about 772.5720081038.

The spelling of 461123129 in words is "four hundred sixty-one million, one hundred twenty-three thousand, one hundred twenty-nine".