169317145 has 16 divisors (see below), whose sum is σ = 214709760. Its totient is φ = 127917504.

The previous prime is 169317131. The next prime is 169317199. The reversal of 169317145 is 541713961.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 169317145 - 2⁷ = 169317017 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 18403.

It is an arithmetic number, because the mean of its divisors is an integer number (13419360).

Almost surely, 2^169317145 is an apocalyptic number.

It is an amenable number.

169317145 is a deficient number, since it is larger than the sum of its proper divisors (45392615).

169317145 is a wasteful number, since it uses less digits than its factorization.

169317145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744.

The product of its digits is 22680, while the sum is 37.

The square root of 169317145 is about 13012.1921673483. The cubic root of 169317145 is about 553.2231081148.

The spelling of 169317145 in words is "one hundred sixty-nine million, three hundred seventeen thousand, one hundred forty-five".