143222740 has 12 divisors (see below), whose sum is σ = 300767796. Its totient is φ = 57289088.

The previous prime is 143222719. The next prime is 143222749. The reversal of 143222740 is 47222341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 107246736 + 35976004 = 10356^2 + 5998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143222749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3580549 + ... + 3580588.

It is an arithmetic number, because the mean of its divisors is an integer number (25063983).

Almost surely, 2^143222740 is an apocalyptic number.

143222740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143222740 is an abundant number, since it is smaller than the sum of its proper divisors (157545056).

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

143222740 is a wasteful number, since it uses less digits than its factorization.

143222740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161146 (or 7161144 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 143222740 is about 11967.5703465658. The cubic root of 143222740 is about 523.2035226019.

The spelling of 143222740 in words is "one hundred forty-three million, two hundred twenty-two thousand, seven hundred forty".