461101649 has 2 divisors, whose sum is σ = 461101650. Its totient is φ = 461101648.

The previous prime is 461101639. The next prime is 461101651. The reversal of 461101649 is 946101164.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451860049 + 9241600 = 21257^2 + 3040^2 .

It is a cyclic number.

It is not a de Polignac number, because 461101649 - 2²⁰ = 460053073 is a prime.

It is a super-2 number, since 2×461101649² = 425229461421038402, which contains 22 as substring.

Together with 461101651, 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 (461101639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230550824 + 230550825.

It is an arithmetic number, because the mean of its divisors is an integer number (230550825).

Almost surely, 2^461101649 is an apocalyptic number.

It is an amenable number.

461101649 is a deficient number, since it is larger than the sum of its proper divisors (1).

461101649 is an equidigital number, since it uses as much as digits as its factorization.

461101649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 461101649 is about 21473.2775560695. The cubic root of 461101649 is about 772.5600119554.

The spelling of 461101649 in words is "four hundred sixty-one million, one hundred one thousand, six hundred forty-nine".