190863047 has 2 divisors, whose sum is σ = 190863048. Its totient is φ = 190863046.

The previous prime is 190863041. The next prime is 190863061. The reversal of 190863047 is 740368091.

190863047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190863047 - 2¹² = 190858951 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190863047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190863041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95431523 + 95431524.

It is an arithmetic number, because the mean of its divisors is an integer number (95431524).

Almost surely, 2^190863047 is an apocalyptic number.

190863047 is a deficient number, since it is larger than the sum of its proper divisors (1).

190863047 is an equidigital number, since it uses as much as digits as its factorization.

190863047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 190863047 is about 13815.3192869365. The cubic root of 190863047 is about 575.7588438384.

The spelling of 190863047 in words is "one hundred ninety million, eight hundred sixty-three thousand, forty-seven".