6154394161 has 2 divisors, whose sum is σ = 6154394162. Its totient is φ = 6154394160.

The previous prime is 6154394159. The next prime is 6154394173. The reversal of 6154394161 is 1614934516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4195800625 + 1958593536 = 64775^2 + 44256^2 .

It is a cyclic number.

It is not a de Polignac number, because 6154394161 - 2¹ = 6154394159 is a prime.

Together with 6154394159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6154394131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077197080 + 3077197081.

It is an arithmetic number, because the mean of its divisors is an integer number (3077197081).

Almost surely, 2^6154394161 is an apocalyptic number.

It is an amenable number.

6154394161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6154394161 is an equidigital number, since it uses as much as digits as its factorization.

6154394161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 6154394161 is about 78449.9468514798. The cubic root of 6154394161 is about 1832.5750485653.

The spelling of 6154394161 in words is "six billion, one hundred fifty-four million, three hundred ninety-four thousand, one hundred sixty-one".