5394021161 has 2 divisors, whose sum is σ = 5394021162. Its totient is φ = 5394021160.

The previous prime is 5394021121. The next prime is 5394021229. The reversal of 5394021161 is 1611204935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5394021136 + 25 = 73444^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 5394021161 - 2²² = 5389826857 is a prime.

It is not a weakly prime, because it can be changed into another prime (5394021121) 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, 2697010580 + 2697010581.

It is an arithmetic number, because the mean of its divisors is an integer number (2697010581).

Almost surely, 2^5394021161 is an apocalyptic number.

It is an amenable number.

5394021161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5394021161 is an equidigital number, since it uses as much as digits as its factorization.

5394021161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 5394021161 is about 73444.0001701977. Note that the first 3 decimals coincide. The cubic root of 5394021161 is about 1753.7629137675.

The spelling of 5394021161 in words is "five billion, three hundred ninety-four million, twenty-one thousand, one hundred sixty-one".