72074143 has 2 divisors, whose sum is σ = 72074144. Its totient is φ = 72074142.

The previous prime is 72074137. The next prime is 72074161. The reversal of 72074143 is 34147027.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72074143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72074173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36037071 + 36037072.

It is an arithmetic number, because the mean of its divisors is an integer number (36037072).

Almost surely, 2^72074143 is an apocalyptic number.

72074143 is a deficient number, since it is larger than the sum of its proper divisors (1).

72074143 is an equidigital number, since it uses as much as digits as its factorization.

72074143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 72074143 is about 8489.6491682519. The cubic root of 72074143 is about 416.1595153022.

The spelling of 72074143 in words is "seventy-two million, seventy-four thousand, one hundred forty-three".