161403283 has 2 divisors, whose sum is σ = 161403284. Its totient is φ = 161403282.

The previous prime is 161403269. The next prime is 161403293. The reversal of 161403283 is 382304161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161403283 - 2⁵ = 161403251 is a prime.

It is not a weakly prime, because it can be changed into another prime (161403293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80701641 + 80701642.

It is an arithmetic number, because the mean of its divisors is an integer number (80701642).

Almost surely, 2^161403283 is an apocalyptic number.

161403283 is a deficient number, since it is larger than the sum of its proper divisors (1).

161403283 is an equidigital number, since it uses as much as digits as its factorization.

161403283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 161403283 is about 12704.4591777848. The cubic root of 161403283 is about 544.4660292043.

The spelling of 161403283 in words is "one hundred sixty-one million, four hundred three thousand, two hundred eighty-three".