461522921 has 2 divisors, whose sum is σ = 461522922. Its totient is φ = 461522920.

The previous prime is 461522917. The next prime is 461522969. The reversal of 461522921 is 129225164.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 358723600 + 102799321 = 18940^2 + 10139^2 .

It is a cyclic number.

It is not a de Polignac number, because 461522921 - 2² = 461522917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461522981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230761460 + 230761461.

It is an arithmetic number, because the mean of its divisors is an integer number (230761461).

Almost surely, 2^461522921 is an apocalyptic number.

It is an amenable number.

461522921 is a deficient number, since it is larger than the sum of its proper divisors (1).

461522921 is an equidigital number, since it uses as much as digits as its factorization.

461522921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 461522921 is about 21483.0845317892. The cubic root of 461522921 is about 772.7952159409.

The spelling of 461522921 in words is "four hundred sixty-one million, five hundred twenty-two thousand, nine hundred twenty-one".