163211351 has 2 divisors, whose sum is σ = 163211352. Its totient is φ = 163211350.

The previous prime is 163211341. The next prime is 163211353. The reversal of 163211351 is 153112361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163211351 - 2¹⁸ = 162949207 is a prime.

It is a Sophie Germain prime.

Together with 163211353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163211353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81605675 + 81605676.

It is an arithmetic number, because the mean of its divisors is an integer number (81605676).

Almost surely, 2^163211351 is an apocalyptic number.

163211351 is a deficient number, since it is larger than the sum of its proper divisors (1).

163211351 is an equidigital number, since it uses as much as digits as its factorization.

163211351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 163211351 is about 12775.4197974078. The cubic root of 163211351 is about 546.4915526184.

The spelling of 163211351 in words is "one hundred sixty-three million, two hundred eleven thousand, three hundred fifty-one".