420162317 has 2 divisors, whose sum is σ = 420162318. Its totient is φ = 420162316.

The previous prime is 420162299. The next prime is 420162341. The reversal of 420162317 is 713261024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376786921 + 43375396 = 19411^2 + 6586^2 .

It is a cyclic number.

It is not a de Polignac number, because 420162317 - 2¹⁰ = 420161293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420162397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210081158 + 210081159.

It is an arithmetic number, because the mean of its divisors is an integer number (210081159).

Almost surely, 2^420162317 is an apocalyptic number.

It is an amenable number.

420162317 is a deficient number, since it is larger than the sum of its proper divisors (1).

420162317 is an equidigital number, since it uses as much as digits as its factorization.

420162317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 420162317 is about 20497.8612786798. The cubic root of 420162317 is about 748.9837002091.

The spelling of 420162317 in words is "four hundred twenty million, one hundred sixty-two thousand, three hundred seventeen".