210161423 has 2 divisors, whose sum is σ = 210161424. Its totient is φ = 210161422.

The previous prime is 210161417. The next prime is 210161473. The reversal of 210161423 is 324161012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210161423 - 2⁶ = 210161359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210161395 and 210161404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210161473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105080711 + 105080712.

It is an arithmetic number, because the mean of its divisors is an integer number (105080712).

Almost surely, 2^210161423 is an apocalyptic number.

210161423 is a deficient number, since it is larger than the sum of its proper divisors (1).

210161423 is an equidigital number, since it uses as much as digits as its factorization.

210161423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 210161423 is about 14496.9452989242. The cubic root of 210161423 is about 594.5444555894.

The spelling of 210161423 in words is "two hundred ten million, one hundred sixty-one thousand, four hundred twenty-three".