168880457 has 2 divisors, whose sum is σ = 168880458. Its totient is φ = 168880456.

The previous prime is 168880441. The next prime is 168880471. The reversal of 168880457 is 754088861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168246841 + 633616 = 12971^2 + 796^2 .

It is an emirp because it is prime and its reverse (754088861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168880457 - 2⁴ = 168880441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (168880477) 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, 84440228 + 84440229.

It is an arithmetic number, because the mean of its divisors is an integer number (84440229).

Almost surely, 2^168880457 is an apocalyptic number.

It is an amenable number.

168880457 is a deficient number, since it is larger than the sum of its proper divisors (1).

168880457 is an equidigital number, since it uses as much as digits as its factorization.

168880457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 168880457 is about 12995.4013789494. The cubic root of 168880457 is about 552.7470903964.

It can be divided in two parts, 1688804 and 57, that added together give a palindrome (1688861).

The spelling of 168880457 in words is "one hundred sixty-eight million, eight hundred eighty thousand, four hundred fifty-seven".