169432349 has 2 divisors, whose sum is σ = 169432350. Its totient is φ = 169432348.

The previous prime is 169432337. The next prime is 169432363. The reversal of 169432349 is 943234961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155875225 + 13557124 = 12485^2 + 3682^2 .

It is a cyclic number.

It is not a de Polignac number, because 169432349 - 2⁸ = 169432093 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169432309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84716174 + 84716175.

It is an arithmetic number, because the mean of its divisors is an integer number (84716175).

Almost surely, 2^169432349 is an apocalyptic number.

It is an amenable number.

169432349 is a deficient number, since it is larger than the sum of its proper divisors (1).

169432349 is an equidigital number, since it uses as much as digits as its factorization.

169432349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 169432349 is about 13016.6181859959. The cubic root of 169432349 is about 553.3485513387.

It can be divided in two parts, 1694 and 32349, that added together give a palindrome (34043).

The spelling of 169432349 in words is "one hundred sixty-nine million, four hundred thirty-two thousand, three hundred forty-nine".