461142169 has 2 divisors, whose sum is σ = 461142170. Its totient is φ = 461142168.

The previous prime is 461142167. The next prime is 461142193. The reversal of 461142169 is 961241164.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451137600 + 10004569 = 21240^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 461142169 - 2¹ = 461142167 is a prime.

It is a super-2 number, since 2×461142169² = 425304200060049122, which contains 22 as substring.

Together with 461142167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (461142163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230571084 + 230571085.

It is an arithmetic number, because the mean of its divisors is an integer number (230571085).

Almost surely, 2^461142169 is an apocalyptic number.

It is an amenable number.

461142169 is a deficient number, since it is larger than the sum of its proper divisors (1).

461142169 is an equidigital number, since it uses as much as digits as its factorization.

461142169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 461142169 is about 21474.2210336021. The cubic root of 461142169 is about 772.5826412498.

The spelling of 461142169 in words is "four hundred sixty-one million, one hundred forty-two thousand, one hundred sixty-nine".