168211347 has 12 divisors (see below), whose sum is σ = 228604824. Its totient is φ = 110019520.

The previous prime is 168211319. The next prime is 168211357. The reversal of 168211347 is 743112861.

It is not a de Polignac number, because 168211347 - 2⁸ = 168211091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168211357) 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 in 11 ways as a sum of consecutive naturals, for example, 1554 + ... + 18407.

It is an arithmetic number, because the mean of its divisors is an integer number (19050402).

Almost surely, 2^168211347 is an apocalyptic number.

168211347 is a deficient number, since it is larger than the sum of its proper divisors (60393477).

168211347 is an equidigital number, since it uses as much as digits as its factorization.

168211347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20070 (or 20017 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 168211347 is about 12969.6317218339. The cubic root of 168211347 is about 552.0161233738.

The spelling of 168211347 in words is "one hundred sixty-eight million, two hundred eleven thousand, three hundred forty-seven".