34240145 has 4 divisors (see below), whose sum is σ = 41088180. Its totient is φ = 27392112.

The previous prime is 34240117. The next prime is 34240181. The reversal of 34240145 is 54104243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54104243 = 811 ⋅66713.

It can be written as a sum of positive squares in 2 ways, for example, as 7376656 + 26863489 = 2716^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 34240145 - 2⁶ = 34240081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34240145.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3424010 + ... + 3424019.

It is an arithmetic number, because the mean of its divisors is an integer number (10272045).

Almost surely, 2^34240145 is an apocalyptic number.

It is an amenable number.

34240145 is a deficient number, since it is larger than the sum of its proper divisors (6848035).

34240145 is an equidigital number, since it uses as much as digits as its factorization.

34240145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6848034.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 34240145 is about 5851.5079253129. The cubic root of 34240145 is about 324.7221135498.

Adding to 34240145 its reverse (54104243), we get a palindrome (88344388).

The spelling of 34240145 in words is "thirty-four million, two hundred forty thousand, one hundred forty-five".