949240189 has 2 divisors, whose sum is σ = 949240190. Its totient is φ = 949240188.

The previous prime is 949240177. The next prime is 949240213. The reversal of 949240189 is 981042949.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700925625 + 248314564 = 26475^2 + 15758^2 .

It is an emirp because it is prime and its reverse (981042949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 949240189 - 2¹⁵ = 949207421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949240129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474620094 + 474620095.

It is an arithmetic number, because the mean of its divisors is an integer number (474620095).

Almost surely, 2^949240189 is an apocalyptic number.

It is an amenable number.

949240189 is a deficient number, since it is larger than the sum of its proper divisors (1).

949240189 is an equidigital number, since it uses as much as digits as its factorization.

949240189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 949240189 is about 30809.7417872984. The cubic root of 949240189 is about 982.7854217619.

The spelling of 949240189 in words is "nine hundred forty-nine million, two hundred forty thousand, one hundred eighty-nine".