161330927 has 2 divisors, whose sum is σ = 161330928. Its totient is φ = 161330926.

The previous prime is 161330921. The next prime is 161330929. The reversal of 161330927 is 729033161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161330927 - 2⁶ = 161330863 is a prime.

Together with 161330929, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 161330893 and 161330902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161330921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80665463 + 80665464.

It is an arithmetic number, because the mean of its divisors is an integer number (80665464).

Almost surely, 2^161330927 is an apocalyptic number.

161330927 is a deficient number, since it is larger than the sum of its proper divisors (1).

161330927 is an equidigital number, since it uses as much as digits as its factorization.

161330927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 161330927 is about 12701.6111970096. The cubic root of 161330927 is about 544.3846568975.

The spelling of 161330927 in words is "one hundred sixty-one million, three hundred thirty thousand, nine hundred twenty-seven".