143422019 has 6 divisors (see below), whose sum is σ = 155303316. Its totient is φ = 132389400.

The previous prime is 143422003. The next prime is 143422021. The reversal of 143422019 is 910224341.

It is not a de Polignac number, because 143422019 - 2⁴ = 143422003 is a prime.

It is a super-2 number, since 2×143422019² = 41139751068072722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143422049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424157 + ... + 424494.

It is an arithmetic number, because the mean of its divisors is an integer number (25883886).

Almost surely, 2^143422019 is an apocalyptic number.

143422019 is a deficient number, since it is larger than the sum of its proper divisors (11881297).

143422019 is an equidigital number, since it uses as much as digits as its factorization.

143422019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848677 (or 848664 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 143422019 is about 11975.8932443472. The cubic root of 143422019 is about 523.4460705730.

It can be divided in two parts, 14342 and 2019, that added together give a palindrome (16361).

The spelling of 143422019 in words is "one hundred forty-three million, four hundred twenty-two thousand, nineteen".