461543161 has 4 divisors (see below), whose sum is σ = 461894400. Its totient is φ = 461191924.

The previous prime is 461543153. The next prime is 461543213. The reversal of 461543161 is 161345164.

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 461543161 - 2³ = 461543153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461549161) 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, 173641 + ... + 176278.

It is an arithmetic number, because the mean of its divisors is an integer number (115473600).

Almost surely, 2^461543161 is an apocalyptic number.

It is an amenable number.

461543161 is a deficient number, since it is larger than the sum of its proper divisors (351239).

461543161 is a wasteful number, since it uses less digits than its factorization.

461543161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351238.

The product of its digits is 8640, while the sum is 31.

The square root of 461543161 is about 21483.5555949196. Note that the first 4 decimals coincide. The cubic root of 461543161 is about 772.8065127049.

The spelling of 461543161 in words is "four hundred sixty-one million, five hundred forty-three thousand, one hundred sixty-one".