461634521 has 2 divisors, whose sum is σ = 461634522. Its totient is φ = 461634520.

The previous prime is 461634491. The next prime is 461634581. The reversal of 461634521 is 125436164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 460703296 + 931225 = 21464^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 461634521 - 2¹⁴ = 461618137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461634581) 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, 230817260 + 230817261.

It is an arithmetic number, because the mean of its divisors is an integer number (230817261).

Almost surely, 2^461634521 is an apocalyptic number.

It is an amenable number.

461634521 is a deficient number, since it is larger than the sum of its proper divisors (1).

461634521 is an equidigital number, since it uses as much as digits as its factorization.

461634521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 461634521 is about 21485.6817671676. The cubic root of 461634521 is about 772.8575003126.

The spelling of 461634521 in words is "four hundred sixty-one million, six hundred thirty-four thousand, five hundred twenty-one".