170408145 has 16 divisors (see below), whose sum is σ = 275466240. Its totient is φ = 89946624.

The previous prime is 170408137. The next prime is 170408191. The reversal of 170408145 is 541804071.

It is not a de Polignac number, because 170408145 - 2³ = 170408137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57105 + ... + 60014.

It is an arithmetic number, because the mean of its divisors is an integer number (17216640).

Almost surely, 2^170408145 is an apocalyptic number.

170408145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

170408145 is a deficient number, since it is larger than the sum of its proper divisors (105058095).

170408145 is a wasteful number, since it uses less digits than its factorization.

170408145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117224.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 170408145 is about 13054.0470736090. The cubic root of 170408145 is about 554.4088015184.

The spelling of 170408145 in words is "one hundred seventy million, four hundred eight thousand, one hundred forty-five".