169315913 has 8 divisors (see below), whose sum is σ = 184014600. Its totient is φ = 154856448.

The previous prime is 169315889. The next prime is 169315957. The reversal of 169315913 is 319513961.

It can be written as a sum of positive squares in 4 ways, for example, as 2699449 + 166616464 = 1643^2 + 12908^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169315913 - 2⁶ = 169315849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (169315963) 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 in 7 ways as a sum of consecutive naturals, for example, 58328 + ... + 61161.

It is an arithmetic number, because the mean of its divisors is an integer number (23001825).

Almost surely, 2^169315913 is an apocalyptic number.

169315913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

169315913 is a deficient number, since it is larger than the sum of its proper divisors (14698687).

169315913 is a wasteful number, since it uses less digits than its factorization.

169315913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119611.

The product of its digits is 21870, while the sum is 38.

The square root of 169315913 is about 13012.1448270452. The cubic root of 169315913 is about 553.2217663084.

The spelling of 169315913 in words is "one hundred sixty-nine million, three hundred fifteen thousand, nine hundred thirteen".