419985143 has 2 divisors, whose sum is σ = 419985144. Its totient is φ = 419985142.

The previous prime is 419985131. The next prime is 419985191. The reversal of 419985143 is 341589914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 419985143 - 2⁶ = 419985079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 419985094 and 419985103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (419985193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209992571 + 209992572.

It is an arithmetic number, because the mean of its divisors is an integer number (209992572).

Almost surely, 2^419985143 is an apocalyptic number.

419985143 is a deficient number, since it is larger than the sum of its proper divisors (1).

419985143 is an equidigital number, since it uses as much as digits as its factorization.

419985143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 419985143 is about 20493.5390550290. The cubic root of 419985143 is about 748.8784082862.

The spelling of 419985143 in words is "four hundred nineteen million, nine hundred eighty-five thousand, one hundred forty-three".