461189143 has 2 divisors, whose sum is σ = 461189144. Its totient is φ = 461189142.

The previous prime is 461189111. The next prime is 461189149. The reversal of 461189143 is 341981164.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 461189143 - 2⁵ = 461189111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461189149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230594571 + 230594572.

It is an arithmetic number, because the mean of its divisors is an integer number (230594572).

Almost surely, 2^461189143 is an apocalyptic number.

461189143 is a deficient number, since it is larger than the sum of its proper divisors (1).

461189143 is an equidigital number, since it uses as much as digits as its factorization.

461189143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 461189143 is about 21475.3147357612. The cubic root of 461189143 is about 772.6088732647.

The spelling of 461189143 in words is "four hundred sixty-one million, one hundred eighty-nine thousand, one hundred forty-three".