72143126 has 32 divisors (see below), whose sum is σ = 123876000. Its totient is φ = 31207680.

The previous prime is 72143089. The next prime is 72143129. The reversal of 72143126 is 62134127.

It is a junction number, because it is equal to n+sod(n) for n = 72143095 and 72143104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72143129) 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 15 ways as a sum of consecutive naturals, for example, 45800 + ... + 47348.

It is an arithmetic number, because the mean of its divisors is an integer number (3871125).

Almost surely, 2^72143126 is an apocalyptic number.

72143126 is a deficient number, since it is larger than the sum of its proper divisors (51732874).

72143126 is a wasteful number, since it uses less digits than its factorization.

72143126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its digits is 2016, while the sum is 26.

The square root of 72143126 is about 8493.7109675336. The cubic root of 72143126 is about 416.2922433358.

The spelling of 72143126 in words is "seventy-two million, one hundred forty-three thousand, one hundred twenty-six".