143320972 has 12 divisors (see below), whose sum is σ = 253630440. Its totient is φ = 70855136.

The previous prime is 143320963. The next prime is 143321023. The reversal of 143320972 is 279023341.

It is an unprimeable number.

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, 200938 + ... + 201649.

It is an arithmetic number, because the mean of its divisors is an integer number (21135870).

Almost surely, 2^143320972 is an apocalyptic number.

It is an amenable number.

143320972 is a deficient number, since it is larger than the sum of its proper divisors (110309468).

143320972 is a wasteful number, since it uses less digits than its factorization.

143320972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402680 (or 402678 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 143320972 is about 11971.6737342779. The cubic root of 143320972 is about 523.3231115786.

The spelling of 143320972 in words is "one hundred forty-three million, three hundred twenty thousand, nine hundred seventy-two".