920039161 has 2 divisors, whose sum is σ = 920039162. Its totient is φ = 920039160.

The previous prime is 920039089. The next prime is 920039177. The reversal of 920039161 is 161930029.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891619600 + 28419561 = 29860^2 + 5331^2 .

It is a cyclic number.

It is not a de Polignac number, because 920039161 - 2¹⁷ = 919908089 is a prime.

It is not a weakly prime, because it can be changed into another prime (920034161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460019580 + 460019581.

It is an arithmetic number, because the mean of its divisors is an integer number (460019581).

Almost surely, 2^920039161 is an apocalyptic number.

It is an amenable number.

920039161 is a deficient number, since it is larger than the sum of its proper divisors (1).

920039161 is an equidigital number, since it uses as much as digits as its factorization.

920039161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 920039161 is about 30332.1473193046. The cubic root of 920039161 is about 972.6026258604.

The spelling of 920039161 in words is "nine hundred twenty million, thirty-nine thousand, one hundred sixty-one".