992840161 has 2 divisors, whose sum is σ = 992840162. Its totient is φ = 992840160.

The previous prime is 992840119. The next prime is 992840197. The reversal of 992840161 is 161048299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946177600 + 46662561 = 30760^2 + 6831^2 .

It is a cyclic number.

It is not a de Polignac number, because 992840161 - 2⁹ = 992839649 is a prime.

It is not a weakly prime, because it can be changed into another prime (992840111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496420080 + 496420081.

It is an arithmetic number, because the mean of its divisors is an integer number (496420081).

Almost surely, 2^992840161 is an apocalyptic number.

It is an amenable number.

992840161 is a deficient number, since it is larger than the sum of its proper divisors (1).

992840161 is an equidigital number, since it uses as much as digits as its factorization.

992840161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 992840161 is about 31509.3662424365. The cubic root of 992840161 is about 997.6076683131.

The spelling of 992840161 in words is "nine hundred ninety-two million, eight hundred forty thousand, one hundred sixty-one".