143222434 has 4 divisors (see below), whose sum is σ = 214833654. Its totient is φ = 71611216.

The previous prime is 143222413. The next prime is 143222473. The reversal of 143222434 is 434222341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434222341 = 7 ⋅62031763.

It can be written as a sum of positive squares in only one way, i.e., 134490409 + 8732025 = 11597^2 + 2955^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143222399 and 143222408.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35805607 + ... + 35805610.

Almost surely, 2^143222434 is an apocalyptic number.

143222434 is a deficient number, since it is larger than the sum of its proper divisors (71611220).

143222434 is an equidigital number, since it uses as much as digits as its factorization.

143222434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71611219.

The product of its digits is 4608, while the sum is 25.

The square root of 143222434 is about 11967.5575620091. The cubic root of 143222434 is about 523.2031499879.

Adding to 143222434 its reverse (434222341), we get a palindrome (577444775).

The spelling of 143222434 in words is "one hundred forty-three million, two hundred twenty-two thousand, four hundred thirty-four".