36181543 has 2 divisors, whose sum is σ = 36181544. Its totient is φ = 36181542.

The previous prime is 36181513. The next prime is 36181577. The reversal of 36181543 is 34518163.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36181543 - 2⁹ = 36181031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36181513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18090771 + 18090772.

It is an arithmetic number, because the mean of its divisors is an integer number (18090772).

Almost surely, 2^36181543 is an apocalyptic number.

36181543 is a deficient number, since it is larger than the sum of its proper divisors (1).

36181543 is an equidigital number, since it uses as much as digits as its factorization.

36181543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 36181543 is about 6015.1095584370. The cubic root of 36181543 is about 330.7468331841.

The spelling of 36181543 in words is "thirty-six million, one hundred eighty-one thousand, five hundred forty-three".