343434145 has 4 divisors (see below), whose sum is σ = 412120980. Its totient is φ = 274747312.

The previous prime is 343434131. The next prime is 343434149. The reversal of 343434145 is 541434343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541434343 = 17 ⋅31849079.

It can be written as a sum of positive squares in 2 ways, for example, as 46457856 + 296976289 = 6816^2 + 17233^2 .

It is a cyclic number.

It is not a de Polignac number, because 343434145 - 2²¹ = 341336993 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (343434149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34343410 + ... + 34343419.

It is an arithmetic number, because the mean of its divisors is an integer number (103030245).

Almost surely, 2^343434145 is an apocalyptic number.

It is an amenable number.

343434145 is a deficient number, since it is larger than the sum of its proper divisors (68686835).

343434145 is an equidigital number, since it uses as much as digits as its factorization.

343434145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68686834.

The product of its digits is 34560, while the sum is 31.

The square root of 343434145 is about 18531.9762842499. The cubic root of 343434145 is about 700.2952122168.

Adding to 343434145 its reverse (541434343), we get a palindrome (884868488).

The spelling of 343434145 in words is "three hundred forty-three million, four hundred thirty-four thousand, one hundred forty-five".