72022543 has 2 divisors, whose sum is σ = 72022544. Its totient is φ = 72022542.

The previous prime is 72022541. The next prime is 72022547. The reversal of 72022543 is 34522027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72022543 - 2¹ = 72022541 is a prime.

Together with 72022541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72022541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36011271 + 36011272.

It is an arithmetic number, because the mean of its divisors is an integer number (36011272).

Almost surely, 2^72022543 is an apocalyptic number.

72022543 is a deficient number, since it is larger than the sum of its proper divisors (1).

72022543 is an equidigital number, since it uses as much as digits as its factorization.

72022543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 72022543 is about 8486.6096292925. The cubic root of 72022543 is about 416.0601779776.

The spelling of 72022543 in words is "seventy-two million, twenty-two thousand, five hundred forty-three".