143226018 has 48 divisors (see below), whose sum is σ = 335495160. Its totient is φ = 43898112.

The previous prime is 143226007. The next prime is 143226019. The reversal of 143226018 is 810622341.

It can be written as a sum of positive squares in 4 ways, for example, as 141919569 + 1306449 = 11913^2 + 1143^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143225982 and 143226000.

It is not an unprimeable number, because it can be changed into a prime (143226019) 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 23 ways as a sum of consecutive naturals, for example, 67518 + ... + 69606.

Almost surely, 2^143226018 is an apocalyptic number.

143226018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143226018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167747580).

143226018 is an abundant number, since it is smaller than the sum of its proper divisors (192269142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143226018 is a wasteful number, since it uses less digits than its factorization.

143226018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2400 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 143226018 is about 11967.7072992282. The cubic root of 143226018 is about 523.2075141656.

Adding to 143226018 its reverse (810622341), we get a palindrome (953848359).

It can be divided in two parts, 1432260 and 18, that added together give a triangular number (1432278 = T₁₆₉₂).

The spelling of 143226018 in words is "one hundred forty-three million, two hundred twenty-six thousand, eighteen".