461453021 has 2 divisors, whose sum is σ = 461453022. Its totient is φ = 461453020.

The previous prime is 461452969. The next prime is 461453039. The reversal of 461453021 is 120354164.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353064100 + 108388921 = 18790^2 + 10411^2 .

It is a cyclic number.

It is not a de Polignac number, because 461453021 - 2²² = 457258717 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461453051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230726510 + 230726511.

It is an arithmetic number, because the mean of its divisors is an integer number (230726511).

Almost surely, 2^461453021 is an apocalyptic number.

It is an amenable number.

461453021 is a deficient number, since it is larger than the sum of its proper divisors (1).

461453021 is an equidigital number, since it uses as much as digits as its factorization.

461453021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 461453021 is about 21481.4576088309. The cubic root of 461453021 is about 772.7561993789.

The spelling of 461453021 in words is "four hundred sixty-one million, four hundred fifty-three thousand, twenty-one".