461953081 has 2 divisors, whose sum is σ = 461953082. Its totient is φ = 461953080.

The previous prime is 461953049. The next prime is 461953111. The reversal of 461953081 is 180359164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461863081 + 90000 = 21491^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 461953081 - 2⁵ = 461953049 is a prime.

It is a super-2 number, since 2×461953081² = 426801298090785122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 461953081.

It is not a weakly prime, because it can be changed into another prime (461953021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230976540 + 230976541.

It is an arithmetic number, because the mean of its divisors is an integer number (230976541).

Almost surely, 2^461953081 is an apocalyptic number.

It is an amenable number.

461953081 is a deficient number, since it is larger than the sum of its proper divisors (1).

461953081 is an equidigital number, since it uses as much as digits as its factorization.

461953081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 461953081 is about 21493.0937977761. The cubic root of 461953081 is about 773.0352346196.

The spelling of 461953081 in words is "four hundred sixty-one million, nine hundred fifty-three thousand, eighty-one".