461703521 has 2 divisors, whose sum is σ = 461703522. Its totient is φ = 461703520.

The previous prime is 461703509. The next prime is 461703523. The reversal of 461703521 is 125307164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439950625 + 21752896 = 20975^2 + 4664^2 .

It is a cyclic number.

It is not a de Polignac number, because 461703521 - 2¹⁰ = 461702497 is a prime.

Together with 461703523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (461703523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230851760 + 230851761.

It is an arithmetic number, because the mean of its divisors is an integer number (230851761).

Almost surely, 2^461703521 is an apocalyptic number.

It is an amenable number.

461703521 is a deficient number, since it is larger than the sum of its proper divisors (1).

461703521 is an equidigital number, since it uses as much as digits as its factorization.

461703521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 461703521 is about 21487.2874276862. The cubic root of 461703521 is about 772.8960044455.

The spelling of 461703521 in words is "four hundred sixty-one million, seven hundred three thousand, five hundred twenty-one".