461530649 has 2 divisors, whose sum is σ = 461530650. Its totient is φ = 461530648.

The previous prime is 461530583. The next prime is 461530651. The reversal of 461530649 is 946035164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294294025 + 167236624 = 17155^2 + 12932^2 .

It is a cyclic number.

It is not a de Polignac number, because 461530649 - 2⁸ = 461530393 is a prime.

It is a super-2 number, since 2×461530649² = 426021079932722402, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 461530651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (461530249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230765324 + 230765325.

It is an arithmetic number, because the mean of its divisors is an integer number (230765325).

Almost surely, 2^461530649 is an apocalyptic number.

It is an amenable number.

461530649 is a deficient number, since it is larger than the sum of its proper divisors (1).

461530649 is an equidigital number, since it uses as much as digits as its factorization.

461530649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 461530649 is about 21483.2643934761. The cubic root of 461530649 is about 772.7995292897.

The spelling of 461530649 in words is "four hundred sixty-one million, five hundred thirty thousand, six hundred forty-nine".