161832379 has 2 divisors, whose sum is σ = 161832380. Its totient is φ = 161832378.

The previous prime is 161832361. The next prime is 161832389. The reversal of 161832379 is 973238161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161832379 - 2¹⁷ = 161701307 is a prime.

It is not a weakly prime, because it can be changed into another prime (161832389) 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, 80916189 + 80916190.

It is an arithmetic number, because the mean of its divisors is an integer number (80916190).

Almost surely, 2^161832379 is an apocalyptic number.

161832379 is a deficient number, since it is larger than the sum of its proper divisors (1).

161832379 is an equidigital number, since it uses as much as digits as its factorization.

161832379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 161832379 is about 12721.3355823986. The cubic root of 161832379 is about 544.9480959464.

The spelling of 161832379 in words is "one hundred sixty-one million, eight hundred thirty-two thousand, three hundred seventy-nine".