80143972 has 6 divisors (see below), whose sum is σ = 140251958. Its totient is φ = 40071984.

The previous prime is 80143969. The next prime is 80143979. The reversal of 80143972 is 27934108.

It can be written as a sum of positive squares in only one way, i.e., 67010596 + 13133376 = 8186^2 + 3624^2 .

It is not an unprimeable number, because it can be changed into a prime (80143979) 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 as a sum of consecutive naturals, namely, 10017993 + ... + 10018000.

Almost surely, 2^80143972 is an apocalyptic number.

It is an amenable number.

80143972 is a deficient number, since it is larger than the sum of its proper divisors (60107986).

80143972 is a wasteful number, since it uses less digits than its factorization.

80143972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20035997 (or 20035995 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 80143972 is about 8952.3165717037. The cubic root of 80143972 is about 431.1452649949.

The spelling of 80143972 in words is "eighty million, one hundred forty-three thousand, nine hundred seventy-two".