169113138 has 8 divisors (see below), whose sum is σ = 338226288. Its totient is φ = 56371044.

The previous prime is 169113101. The next prime is 169113149. The reversal of 169113138 is 831311961.

It is a happy number.

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

169113138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 169113099 and 169113108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14092756 + ... + 14092767.

It is an arithmetic number, because the mean of its divisors is an integer number (42278286).

Almost surely, 2^169113138 is an apocalyptic number.

169113138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169113138 is a wasteful number, since it uses less digits than its factorization.

169113138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28185528.

The product of its digits is 3888, while the sum is 33.

The square root of 169113138 is about 13004.3507335045. The cubic root of 169113138 is about 553.0008294925. Note that the first 3 decimals are identical.

The spelling of 169113138 in words is "one hundred sixty-nine million, one hundred thirteen thousand, one hundred thirty-eight".