169412849 has 2 divisors, whose sum is σ = 169412850. Its totient is φ = 169412848.

The previous prime is 169412827. The next prime is 169412869. The reversal of 169412849 is 948214961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157954624 + 11458225 = 12568^2 + 3385^2 .

It is an emirp because it is prime and its reverse (948214961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169412849 - 2¹² = 169408753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (169412869) 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, 84706424 + 84706425.

It is an arithmetic number, because the mean of its divisors is an integer number (84706425).

Almost surely, 2^169412849 is an apocalyptic number.

It is an amenable number.

169412849 is a deficient number, since it is larger than the sum of its proper divisors (1).

169412849 is an equidigital number, since it uses as much as digits as its factorization.

169412849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 169412849 is about 13015.8691219603. The cubic root of 169412849 is about 553.3273221956.

The spelling of 169412849 in words is "one hundred sixty-nine million, four hundred twelve thousand, eight hundred forty-nine".