344245145 has 4 divisors (see below), whose sum is σ = 413094180. Its totient is φ = 275396112.

The previous prime is 344245141. The next prime is 344245159. The reversal of 344245145 is 541542443.

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 160073104 + 184172041 = 12652^2 + 13571^2 .

It is a cyclic number.

It is not a de Polignac number, because 344245145 - 2² = 344245141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (344245141) 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, 34424510 + ... + 34424519.

It is an arithmetic number, because the mean of its divisors is an integer number (103273545).

Almost surely, 2^344245145 is an apocalyptic number.

It is an amenable number.

344245145 is a deficient number, since it is larger than the sum of its proper divisors (68849035).

344245145 is an equidigital number, since it uses as much as digits as its factorization.

344245145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68849034.

The product of its digits is 38400, while the sum is 32.

The square root of 344245145 is about 18553.8444803227. The cubic root of 344245145 is about 700.8460145165.

Adding to 344245145 its reverse (541542443), we get a palindrome (885787588).

The spelling of 344245145 in words is "three hundred forty-four million, two hundred forty-five thousand, one hundred forty-five".