143222372 has 6 divisors (see below), whose sum is σ = 250639158. Its totient is φ = 71611184.

The previous prime is 143222371. The next prime is 143222381. The reversal of 143222372 is 273222341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 104980516 + 38241856 = 10246^2 + 6184^2 .

It is not an unprimeable number, because it can be changed into a prime (143222371) 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 as a sum of consecutive naturals, namely, 17902793 + ... + 17902800.

It is an arithmetic number, because the mean of its divisors is an integer number (41773193).

Almost surely, 2^143222372 is an apocalyptic number.

It is an amenable number.

143222372 is a deficient number, since it is larger than the sum of its proper divisors (107416786).

143222372 is a wasteful number, since it uses less digits than its factorization.

143222372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35805597 (or 35805595 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 143222372 is about 11967.5549716724. The cubic root of 143222372 is about 523.2030744909.

The spelling of 143222372 in words is "one hundred forty-three million, two hundred twenty-two thousand, three hundred seventy-two".