168427601 has 2 divisors, whose sum is σ = 168427602. Its totient is φ = 168427600.

The previous prime is 168427583. The next prime is 168427639. The reversal of 168427601 is 106724861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144024001 + 24403600 = 12001^2 + 4940^2 .

It is a cyclic number.

It is not a de Polignac number, because 168427601 - 2⁶ = 168427537 is a prime.

It is a super-3 number, since 3×168427601³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168427661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84213800 + 84213801.

It is an arithmetic number, because the mean of its divisors is an integer number (84213801).

Almost surely, 2^168427601 is an apocalyptic number.

It is an amenable number.

168427601 is a deficient number, since it is larger than the sum of its proper divisors (1).

168427601 is an equidigital number, since it uses as much as digits as its factorization.

168427601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 168427601 is about 12977.9659808462. The cubic root of 168427601 is about 552.2525810139.

The spelling of 168427601 in words is "one hundred sixty-eight million, four hundred twenty-seven thousand, six hundred one".