168477601 has 2 divisors, whose sum is σ = 168477602. Its totient is φ = 168477600.

The previous prime is 168477593. The next prime is 168477611. The reversal of 168477601 is 106774861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128142400 + 40335201 = 11320^2 + 6351^2 .

It is an emirp because it is prime and its reverse (106774861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168477601 - 2³ = 168477593 is a prime.

It is not a weakly prime, because it can be changed into another prime (168477611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84238800 + 84238801.

It is an arithmetic number, because the mean of its divisors is an integer number (84238801).

Almost surely, 2^168477601 is an apocalyptic number.

It is an amenable number.

168477601 is a deficient number, since it is larger than the sum of its proper divisors (1).

168477601 is an equidigital number, since it uses as much as digits as its factorization.

168477601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 168477601 is about 12979.8921798295. The cubic root of 168477601 is about 552.3072234774.

The spelling of 168477601 in words is "one hundred sixty-eight million, four hundred seventy-seven thousand, six hundred one".