169424149 has 2 divisors, whose sum is σ = 169424150. Its totient is φ = 169424148.

The previous prime is 169424089. The next prime is 169424161. The reversal of 169424149 is 941424961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165945924 + 3478225 = 12882^2 + 1865^2 .

It is an emirp because it is prime and its reverse (941424961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169424149 - 2¹³ = 169415957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169424179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84712074 + 84712075.

It is an arithmetic number, because the mean of its divisors is an integer number (84712075).

Almost surely, 2^169424149 is an apocalyptic number.

It is an amenable number.

169424149 is a deficient number, since it is larger than the sum of its proper divisors (1).

169424149 is an equidigital number, since it uses as much as digits as its factorization.

169424149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 169424149 is about 13016.3032002178. The cubic root of 169424149 is about 553.3396244103.

The spelling of 169424149 in words is "one hundred sixty-nine million, four hundred twenty-four thousand, one hundred forty-nine".