342245 has 4 divisors (see below), whose sum is σ = 410700. Its totient is φ = 273792.

The previous prime is 342241. The next prime is 342257. The reversal of 342245 is 542243.

342245 is nontrivially palindromic in base 2.

342245 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 64516 + 277729 = 254^2 + 527^2 .

It is a cyclic number.

It is not a de Polignac number, because 342245 - 2² = 342241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34220 + ... + 34229.

It is an arithmetic number, because the mean of its divisors is an integer number (102675).

2³⁴²²⁴⁵ is an apocalyptic number.

It is an amenable number.

342245 is a deficient number, since it is larger than the sum of its proper divisors (68455).

342245 is an equidigital number, since it uses as much as digits as its factorization.

342245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68454.

The product of its digits is 960, while the sum is 20.

The square root of 342245 is about 585.0170937674. The cubic root of 342245 is about 69.9486017253.

Subtracting from 342245 its sum of digits (20), we obtain a square (342225 = 585²).

Adding to 342245 its reverse (542243), we get a palindrome (884488).

The spelling of 342245 in words is "three hundred forty-two thousand, two hundred forty-five".