161020283 has 2 divisors, whose sum is σ = 161020284. Its totient is φ = 161020282.

The previous prime is 161020273. The next prime is 161020331. The reversal of 161020283 is 382020161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161020283 - 2¹⁸ = 160758139 is a prime.

It is not a weakly prime, because it can be changed into another prime (161020213) 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, 80510141 + 80510142.

It is an arithmetic number, because the mean of its divisors is an integer number (80510142).

Almost surely, 2^161020283 is an apocalyptic number.

161020283 is a deficient number, since it is larger than the sum of its proper divisors (1).

161020283 is an equidigital number, since it uses as much as digits as its factorization.

161020283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 161020283 is about 12689.3767774466. The cubic root of 161020283 is about 544.0350267149.

The spelling of 161020283 in words is "one hundred sixty-one million, twenty thousand, two hundred eighty-three".