168256441 has 2 divisors, whose sum is σ = 168256442. Its totient is φ = 168256440.

The previous prime is 168256423. The next prime is 168256447. The reversal of 168256441 is 144652861.

168256441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142205625 + 26050816 = 11925^2 + 5104^2 .

It is an emirp because it is prime and its reverse (144652861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168256441 - 2⁵ = 168256409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168256441.

It is not a weakly prime, because it can be changed into another prime (168256447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84128220 + 84128221.

It is an arithmetic number, because the mean of its divisors is an integer number (84128221).

Almost surely, 2^168256441 is an apocalyptic number.

It is an amenable number.

168256441 is a deficient number, since it is larger than the sum of its proper divisors (1).

168256441 is an equidigital number, since it uses as much as digits as its factorization.

168256441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 168256441 is about 12971.3700510008. The cubic root of 168256441 is about 552.0654470202.

The spelling of 168256441 in words is "one hundred sixty-eight million, two hundred fifty-six thousand, four hundred forty-one".