461151161 has 4 divisors (see below), whose sum is σ = 461475300. Its totient is φ = 460827024.

The previous prime is 461151143. The next prime is 461151209. The reversal of 461151161 is 161151164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184960000 + 276191161 = 13600^2 + 16619^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461151161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 461151161.

It is not an unprimeable number, because it can be changed into a prime (461157161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159926 + ... + 162783.

It is an arithmetic number, because the mean of its divisors is an integer number (115368825).

Almost surely, 2^461151161 is an apocalyptic number.

It is an amenable number.

461151161 is a deficient number, since it is larger than the sum of its proper divisors (324139).

461151161 is a wasteful number, since it uses less digits than its factorization.

461151161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324138.

The product of its digits is 720, while the sum is 26.

The square root of 461151161 is about 21474.4303998965. The cubic root of 461151161 is about 772.5876628522.

The spelling of 461151161 in words is "four hundred sixty-one million, one hundred fifty-one thousand, one hundred sixty-one".