461819 has 2 divisors, whose sum is σ = 461820. Its totient is φ = 461818.

The previous prime is 461803. The next prime is 461843. The reversal of 461819 is 918164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461819 - 2⁴ = 461803 is a prime.

It is a super-2 number, since 2×461819² = 426553577522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 461791 and 461800.

It is not a weakly prime, because it can be changed into another prime (461119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230909 + 230910.

It is an arithmetic number, because the mean of its divisors is an integer number (230910).

2⁴⁶¹⁸¹⁹ is an apocalyptic number.

461819 is a deficient number, since it is larger than the sum of its proper divisors (1).

461819 is an equidigital number, since it uses as much as digits as its factorization.

461819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 461819 is about 679.5726598385. The cubic root of 461819 is about 77.2960436715.

The spelling of 461819 in words is "four hundred sixty-one thousand, eight hundred nineteen".