170409122 has 48 divisors (see below), whose sum is σ = 299780352. Its totient is φ = 72334080.

The previous prime is 170409121. The next prime is 170409143. The reversal of 170409122 is 221904071.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 170409091 and 170409100.

It is not an unprimeable number, because it can be changed into a prime (170409121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 269747 + ... + 270377.

It is an arithmetic number, because the mean of its divisors is an integer number (6245424).

Almost surely, 2^170409122 is an apocalyptic number.

170409122 is a deficient number, since it is larger than the sum of its proper divisors (129371230).

170409122 is a wasteful number, since it uses less digits than its factorization.

170409122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 170409122 is about 13054.0844949004. The cubic root of 170409122 is about 554.4098610459.

It can be divided in two parts, 17040 and 9122, that added together give a palindrome (26162).

The spelling of 170409122 in words is "one hundred seventy million, four hundred nine thousand, one hundred twenty-two".