163123001 has 2 divisors, whose sum is σ = 163123002. Its totient is φ = 163123000.

The previous prime is 163122989. The next prime is 163123003. The reversal of 163123001 is 100321361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128029225 + 35093776 = 11315^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 163123001 - 2⁶ = 163122937 is a prime.

It is a super-2 number, since 2×163123001² = 53218226910492002, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 163123003, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (163123003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81561500 + 81561501.

It is an arithmetic number, because the mean of its divisors is an integer number (81561501).

Almost surely, 2^163123001 is an apocalyptic number.

It is an amenable number.

163123001 is a deficient number, since it is larger than the sum of its proper divisors (1).

163123001 is an equidigital number, since it uses as much as digits as its factorization.

163123001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 163123001 is about 12771.9615173238. The cubic root of 163123001 is about 546.3929254025.

Adding to 163123001 its reverse (100321361), we get a palindrome (263444362).

The spelling of 163123001 in words is "one hundred sixty-three million, one hundred twenty-three thousand, one".