461221273 has 2 divisors, whose sum is σ = 461221274. Its totient is φ = 461221272.

The previous prime is 461221217. The next prime is 461221283. The reversal of 461221273 is 372122164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 332807049 + 128414224 = 18243^2 + 11332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461221273 is a prime.

It is not a weakly prime, because it can be changed into another prime (461221283) 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, 230610636 + 230610637.

It is an arithmetic number, because the mean of its divisors is an integer number (230610637).

Almost surely, 2^461221273 is an apocalyptic number.

It is an amenable number.

461221273 is a deficient number, since it is larger than the sum of its proper divisors (1).

461221273 is an equidigital number, since it uses as much as digits as its factorization.

461221273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 461221273 is about 21476.0627909307. The cubic root of 461221273 is about 772.6268148165.

The spelling of 461221273 in words is "four hundred sixty-one million, two hundred twenty-one thousand, two hundred seventy-three".