379812161 has 2 divisors, whose sum is σ = 379812162. Its totient is φ = 379812160.

The previous prime is 379812149. The next prime is 379812193. The reversal of 379812161 is 161218973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222159025 + 157653136 = 14905^2 + 12556^2 .

It is a cyclic number.

It is not a de Polignac number, because 379812161 - 2¹⁴ = 379795777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (379812131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189906080 + 189906081.

It is an arithmetic number, because the mean of its divisors is an integer number (189906081).

Almost surely, 2^379812161 is an apocalyptic number.

It is an amenable number.

379812161 is a deficient number, since it is larger than the sum of its proper divisors (1).

379812161 is an equidigital number, since it uses as much as digits as its factorization.

379812161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 379812161 is about 19488.7701253825. The cubic root of 379812161 is about 724.1962784228.

It can be divided in two parts, 379812 and 161, that added together give a palindrome (379973).

The spelling of 379812161 in words is "three hundred seventy-nine million, eight hundred twelve thousand, one hundred sixty-one".