170542134 has 48 divisors (see below), whose sum is σ = 424543392. Its totient is φ = 48466944.

The previous prime is 170542133. The next prime is 170542193. The reversal of 170542134 is 431245071.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 170542098 and 170542107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170542133) 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, 20812 + ... + 27824.

It is an arithmetic number, because the mean of its divisors is an integer number (8844654).

Almost surely, 2^170542134 is an apocalyptic number.

170542134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 170542134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212271696).

170542134 is an abundant number, since it is smaller than the sum of its proper divisors (254001258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

170542134 is a wasteful number, since it uses less digits than its factorization.

170542134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221 (or 7218 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 170542134 is about 13059.1781517828. The cubic root of 170542134 is about 554.5540708262.

The spelling of 170542134 in words is "one hundred seventy million, five hundred forty-two thousand, one hundred thirty-four".