189250543 has 2 divisors, whose sum is σ = 189250544. Its totient is φ = 189250542.

The previous prime is 189250531. The next prime is 189250577. The reversal of 189250543 is 345052981.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189250543 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189250343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94625271 + 94625272.

It is an arithmetic number, because the mean of its divisors is an integer number (94625272).

Almost surely, 2^189250543 is an apocalyptic number.

189250543 is a deficient number, since it is larger than the sum of its proper divisors (1).

189250543 is an equidigital number, since it uses as much as digits as its factorization.

189250543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 189250543 is about 13756.8362278541. The cubic root of 189250543 is about 574.1328256757.

The spelling of 189250543 in words is "one hundred eighty-nine million, two hundred fifty thousand, five hundred forty-three".