377117161 has 2 divisors, whose sum is σ = 377117162. Its totient is φ = 377117160.

The previous prime is 377117159. The next prime is 377117173. The reversal of 377117161 is 161711773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377097561 + 19600 = 19419^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 377117161 - 2¹ = 377117159 is a prime.

Together with 377117159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (377117261) 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, 188558580 + 188558581.

It is an arithmetic number, because the mean of its divisors is an integer number (188558581).

Almost surely, 2^377117161 is an apocalyptic number.

It is an amenable number.

377117161 is a deficient number, since it is larger than the sum of its proper divisors (1).

377117161 is an equidigital number, since it uses as much as digits as its factorization.

377117161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6174, while the sum is 34.

The square root of 377117161 is about 19419.5046538268. The cubic root of 377117161 is about 722.4793389765.

The spelling of 377117161 in words is "three hundred seventy-seven million, one hundred seventeen thousand, one hundred sixty-one".