169124513 has 4 divisors (see below), whose sum is σ = 171897108. Its totient is φ = 166351920.

The previous prime is 169124441. The next prime is 169124531. The reversal of 169124513 is 315421961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 315421961 = 17 ⋅18554233.

It can be written as a sum of positive squares in 2 ways, for example, as 28654609 + 140469904 = 5353^2 + 11852^2 .

It is a cyclic number.

It is not a de Polignac number, because 169124513 - 2²⁰ = 168075937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169124513.

It is not an unprimeable number, because it can be changed into a prime (169124533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386206 + ... + 1386327.

It is an arithmetic number, because the mean of its divisors is an integer number (42974277).

Almost surely, 2^169124513 is an apocalyptic number.

It is an amenable number.

169124513 is a deficient number, since it is larger than the sum of its proper divisors (2772595).

169124513 is an equidigital number, since it uses as much as digits as its factorization.

169124513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772594.

The product of its digits is 6480, while the sum is 32.

The square root of 169124513 is about 13004.7880797805. The cubic root of 169124513 is about 553.0132279840.

The spelling of 169124513 in words is "one hundred sixty-nine million, one hundred twenty-four thousand, five hundred thirteen".