342145 has 8 divisors (see below), whose sum is σ = 420840. Its totient is φ = 266880.

The previous prime is 342143. The next prime is 342179. The reversal of 342145 is 541243.

It can be written as a sum of positive squares in 4 ways, for example, as 1089 + 341056 = 33^2 + 584^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 342145 - 2¹ = 342143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (342143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630 + ... + 1039.

It is an arithmetic number, because the mean of its divisors is an integer number (52605).

342145 is a Friedman number, since it can be written as 44*(3*2)^5+1, using all its digits and the basic arithmetic operations.

2³⁴²¹⁴⁵ is an apocalyptic number.

It is an amenable number.

342145 is a deficient number, since it is larger than the sum of its proper divisors (78695).

342145 is a wasteful number, since it uses less digits than its factorization.

342145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its digits is 480, while the sum is 19.

The square root of 342145 is about 584.9316199352. The cubic root of 342145 is about 69.9417883396.

Adding to 342145 its reverse (541243), we get a palindrome (883388).

The spelling of 342145 in words is "three hundred forty-two thousand, one hundred forty-five".