461457521 has 4 divisors (see below), whose sum is σ = 527380032. Its totient is φ = 395535012.

The previous prime is 461457517. The next prime is 461457527. The reversal of 461457521 is 125754164.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 461457521 - 2² = 461457517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461457527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32961245 + ... + 32961258.

It is an arithmetic number, because the mean of its divisors is an integer number (131845008).

Almost surely, 2^461457521 is an apocalyptic number.

It is an amenable number.

461457521 is a deficient number, since it is larger than the sum of its proper divisors (65922511).

461457521 is an equidigital number, since it uses as much as digits as its factorization.

461457521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65922510.

The product of its digits is 33600, while the sum is 35.

The square root of 461457521 is about 21481.5623500713. The cubic root of 461457521 is about 772.7587112934.

The spelling of 461457521 in words is "four hundred sixty-one million, four hundred fifty-seven thousand, five hundred twenty-one".