189527047 has 2 divisors, whose sum is σ = 189527048. Its totient is φ = 189527046.

The previous prime is 189527027. The next prime is 189527111. The reversal of 189527047 is 740725981.

It is a weak prime.

It is an emirp because it is prime and its reverse (740725981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189527047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189526994 and 189527012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189527017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94763523 + 94763524.

It is an arithmetic number, because the mean of its divisors is an integer number (94763524).

Almost surely, 2^189527047 is an apocalyptic number.

189527047 is a deficient number, since it is larger than the sum of its proper divisors (1).

189527047 is an equidigital number, since it uses as much as digits as its factorization.

189527047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 189527047 is about 13766.8822541634. The cubic root of 189527047 is about 574.4123013543.

The spelling of 189527047 in words is "one hundred eighty-nine million, five hundred twenty-seven thousand, forty-seven".