169117013 has 4 divisors (see below), whose sum is σ = 182126028. Its totient is φ = 156108000.

The previous prime is 169117007. The next prime is 169117049. The reversal of 169117013 is 310711961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55011889 + 114105124 = 7417^2 + 10682^2 .

It is a cyclic number.

It is not a de Polignac number, because 169117013 - 2¹² = 169112917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169117063) 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 in 3 ways as a sum of consecutive naturals, for example, 6504488 + ... + 6504513.

It is an arithmetic number, because the mean of its divisors is an integer number (45531507).

Almost surely, 2^169117013 is an apocalyptic number.

169117013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

169117013 is a deficient number, since it is larger than the sum of its proper divisors (13009015).

169117013 is a wasteful number, since it uses less digits than its factorization.

169117013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13009014.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 169117013 is about 13004.4997212503. The cubic root of 169117013 is about 553.0050532169.

Adding to 169117013 its reverse (310711961), we get a palindrome (479828974).

The spelling of 169117013 in words is "one hundred sixty-nine million, one hundred seventeen thousand, thirteen".