72182543 has 2 divisors, whose sum is σ = 72182544. Its totient is φ = 72182542.

The previous prime is 72182531. The next prime is 72182549. The reversal of 72182543 is 34528127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72182543 - 2²⁴ = 55405327 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72182549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36091271 + 36091272.

It is an arithmetic number, because the mean of its divisors is an integer number (36091272).

Almost surely, 2^72182543 is an apocalyptic number.

72182543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72182543 is an equidigital number, since it uses as much as digits as its factorization.

72182543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 72182543 is about 8496.0310145385. The cubic root of 72182543 is about 416.3680463711.

The spelling of 72182543 in words is "seventy-two million, one hundred eighty-two thousand, five hundred forty-three".