161433379 has 2 divisors, whose sum is σ = 161433380. Its totient is φ = 161433378.

The previous prime is 161433347. The next prime is 161433397. The reversal of 161433379 is 973334161.

Together with next prime (161433397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161433379 - 2⁵ = 161433347 is a prime.

It is not a weakly prime, because it can be changed into another prime (161431379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80716689 + 80716690.

It is an arithmetic number, because the mean of its divisors is an integer number (80716690).

Almost surely, 2^161433379 is an apocalyptic number.

161433379 is a deficient number, since it is larger than the sum of its proper divisors (1).

161433379 is an equidigital number, since it uses as much as digits as its factorization.

161433379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 37.

The square root of 161433379 is about 12705.6435885791. The cubic root of 161433379 is about 544.4998683161.

The spelling of 161433379 in words is "one hundred sixty-one million, four hundred thirty-three thousand, three hundred seventy-nine".