72143205 has 8 divisors (see below), whose sum is σ = 115429152. Its totient is φ = 38476368.

The previous prime is 72143191. The next prime is 72143219. The reversal of 72143205 is 50234127.

It is an interprime number because it is at equal distance from previous prime (72143191) and next prime (72143219).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72143205 - 2¹⁰ = 72142181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2404759 + ... + 2404788.

It is an arithmetic number, because the mean of its divisors is an integer number (14428644).

Almost surely, 2^72143205 is an apocalyptic number.

It is an amenable number.

72143205 is a deficient number, since it is larger than the sum of its proper divisors (43285947).

72143205 is a wasteful number, since it uses less digits than its factorization.

72143205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809555.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 72143205 is about 8493.7156180320. The cubic root of 72143205 is about 416.2923952887.

The spelling of 72143205 in words is "seventy-two million, one hundred forty-three thousand, two hundred five".