168467449 has 2 divisors, whose sum is σ = 168467450. Its totient is φ = 168467448.

The previous prime is 168467417. The next prime is 168467473. The reversal of 168467449 is 944764861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113039424 + 55428025 = 10632^2 + 7445^2 .

It is an emirp because it is prime and its reverse (944764861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168467449 - 2⁵ = 168467417 is a prime.

It is not a weakly prime, because it can be changed into another prime (168467489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84233724 + 84233725.

It is an arithmetic number, because the mean of its divisors is an integer number (84233725).

Almost surely, 2^168467449 is an apocalyptic number.

It is an amenable number.

168467449 is a deficient number, since it is larger than the sum of its proper divisors (1).

168467449 is an equidigital number, since it uses as much as digits as its factorization.

168467449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 49.

The square root of 168467449 is about 12979.5011075157. The cubic root of 168467449 is about 552.2961297464.

The spelling of 168467449 in words is "one hundred sixty-eight million, four hundred sixty-seven thousand, four hundred forty-nine".