169374009 has 16 divisors (see below), whose sum is σ = 273276288. Its totient is φ = 91091712.

The previous prime is 169373983. The next prime is 169374013. The reversal of 169374009 is 900473961.

It is not a de Polignac number, because 169374009 - 2¹² = 169369913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169374809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236862 + ... + 237575.

It is an arithmetic number, because the mean of its divisors is an integer number (17079768).

Almost surely, 2^169374009 is an apocalyptic number.

It is an amenable number.

169374009 is a deficient number, since it is larger than the sum of its proper divisors (103902279).

169374009 is a wasteful number, since it uses less digits than its factorization.

169374009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474464.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 169374009 is about 13014.3770115976. The cubic root of 169374009 is about 553.2850332431.

The spelling of 169374009 in words is "one hundred sixty-nine million, three hundred seventy-four thousand, nine".