4145345 has 4 divisors (see below), whose sum is σ = 4974420. Its totient is φ = 3316272.

The previous prime is 4145341. The next prime is 4145371. The reversal of 4145345 is 5435414.

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 1478656 + 2666689 = 1216^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145345 - 2² = 4145341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4145341) 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, 414530 + ... + 414539.

It is an arithmetic number, because the mean of its divisors is an integer number (1243605).

Almost surely, 2^4145345 is an apocalyptic number.

It is an amenable number.

4145345 is a deficient number, since it is larger than the sum of its proper divisors (829075).

4145345 is an equidigital number, since it uses as much as digits as its factorization.

4145345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829074.

The product of its digits is 4800, while the sum is 26.

The square root of 4145345 is about 2036.0120333633. The cubic root of 4145345 is about 160.6399500082.

The spelling of 4145345 in words is "four million, one hundred forty-five thousand, three hundred forty-five".