942189361 has 2 divisors, whose sum is σ = 942189362. Its totient is φ = 942189360.

The previous prime is 942189341. The next prime is 942189403. The reversal of 942189361 is 163981249.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 916878400 + 25310961 = 30280^2 + 5031^2 .

It is an emirp because it is prime and its reverse (163981249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 942189361 - 2¹¹ = 942187313 is a prime.

It is not a weakly prime, because it can be changed into another prime (942189301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471094680 + 471094681.

It is an arithmetic number, because the mean of its divisors is an integer number (471094681).

Almost surely, 2^942189361 is an apocalyptic number.

It is an amenable number.

942189361 is a deficient number, since it is larger than the sum of its proper divisors (1).

942189361 is an equidigital number, since it uses as much as digits as its factorization.

942189361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 942189361 is about 30695.1032088182. The cubic root of 942189361 is about 980.3460394673.

The spelling of 942189361 in words is "nine hundred forty-two million, one hundred eighty-nine thousand, three hundred sixty-one".