169073091 has 48 divisors (see below), whose sum is σ = 276932448. Its totient is φ = 98496000.

The previous prime is 169073089. The next prime is 169073123. The reversal of 169073091 is 190370961.

169073091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 169073091 - 2¹ = 169073089 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (169073011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 369735 + ... + 370191.

It is an arithmetic number, because the mean of its divisors is an integer number (5769426).

Almost surely, 2^169073091 is an apocalyptic number.

169073091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

169073091 is a deficient number, since it is larger than the sum of its proper divisors (107859357).

169073091 is a wasteful number, since it uses less digits than its factorization.

169073091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 169073091 is about 13002.8108884195. The cubic root of 169073091 is about 552.9571747479.

The spelling of 169073091 in words is "one hundred sixty-nine million, seventy-three thousand, ninety-one".