169135738 has 8 divisors (see below), whose sum is σ = 257490432. Its totient is φ = 83305596.

The previous prime is 169135723. The next prime is 169135741. The reversal of 169135738 is 837531961.

169135738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 169135694 and 169135703.

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, 630970 + ... + 631237.

It is an arithmetic number, because the mean of its divisors is an integer number (32186304).

Almost surely, 2^169135738 is an apocalyptic number.

169135738 is a deficient number, since it is larger than the sum of its proper divisors (88354694).

169135738 is a wasteful number, since it uses less digits than its factorization.

169135738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262276.

The product of its digits is 136080, while the sum is 43.

The square root of 169135738 is about 13005.2196444351. The cubic root of 169135738 is about 553.0254624340.

The spelling of 169135738 in words is "one hundred sixty-nine million, one hundred thirty-five thousand, seven hundred thirty-eight".