169538133 has 4 divisors (see below), whose sum is σ = 226050848. Its totient is φ = 113025420.

The previous prime is 169538123. The next prime is 169538137. The reversal of 169538133 is 331835961.

169538133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 169538133 - 2⁶ = 169538069 is a prime.

It is a super-2 number, since 2×169538133² = 57486357082251378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 169538091 and 169538100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169538137) 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, 28256353 + ... + 28256358.

It is an arithmetic number, because the mean of its divisors is an integer number (56512712).

Almost surely, 2^169538133 is an apocalyptic number.

It is an amenable number.

169538133 is a deficient number, since it is larger than the sum of its proper divisors (56512715).

169538133 is an equidigital number, since it uses as much as digits as its factorization.

169538133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56512714.

The product of its digits is 58320, while the sum is 39.

The square root of 169538133 is about 13020.6809729753. The cubic root of 169538133 is about 553.4636872531.

The spelling of 169538133 in words is "one hundred sixty-nine million, five hundred thirty-eight thousand, one hundred thirty-three".