72380143 has 12 divisors (see below), whose sum is σ = 82305720. Its totient is φ = 63528080.

The previous prime is 72380131. The next prime is 72380159. The reversal of 72380143 is 34108327.

It is not a de Polignac number, because 72380143 - 2⁵ = 72380111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72380173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6805 + ... + 13822.

It is an arithmetic number, because the mean of its divisors is an integer number (6858810).

Almost surely, 2^72380143 is an apocalyptic number.

72380143 is a deficient number, since it is larger than the sum of its proper divisors (9925577).

72380143 is a wasteful number, since it uses less digits than its factorization.

72380143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20678 (or 20667 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 72380143 is about 8507.6520262644. The cubic root of 72380143 is about 416.7476366020.

The spelling of 72380143 in words is "seventy-two million, three hundred eighty thousand, one hundred forty-three".