3430145 has 4 divisors (see below), whose sum is σ = 4116180. Its totient is φ = 2744112.

The previous prime is 3430123. The next prime is 3430171. The reversal of 3430145 is 5410343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5410343 = 431 ⋅12553.

It can be written as a sum of positive squares in 2 ways, for example, as 2093809 + 1336336 = 1447^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 3430145 - 2²⁰ = 2381569 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343010 + ... + 343019.

It is an arithmetic number, because the mean of its divisors is an integer number (1029045).

Almost surely, 2^3430145 is an apocalyptic number.

It is an amenable number.

3430145 is a deficient number, since it is larger than the sum of its proper divisors (686035).

3430145 is an equidigital number, since it uses as much as digits as its factorization.

3430145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686034.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3430145 is about 1852.0650636519. The cubic root of 3430145 is about 150.8125533949.

Adding to 3430145 its reverse (5410343), we get a palindrome (8840488).

The spelling of 3430145 in words is "three million, four hundred thirty thousand, one hundred forty-five".