34021145 has 4 divisors (see below), whose sum is σ = 40825380. Its totient is φ = 27216912.

The previous prime is 34021133. The next prime is 34021151. The reversal of 34021145 is 54112043.

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 7529536 + 26491609 = 2744^2 + 5147^2 .

It is a cyclic number.

It is not a de Polignac number, because 34021145 - 2⁴ = 34021129 is a prime.

It is a super-2 number, since 2×34021145² = 2314876614222050, which contains 22 as substring.

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, 3402110 + ... + 3402119.

It is an arithmetic number, because the mean of its divisors is an integer number (10206345).

Almost surely, 2^34021145 is an apocalyptic number.

It is an amenable number.

34021145 is a deficient number, since it is larger than the sum of its proper divisors (6804235).

34021145 is an equidigital number, since it uses as much as digits as its factorization.

34021145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804234.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 34021145 is about 5832.7647818166. The cubic root of 34021145 is about 324.0283246334.

Adding to 34021145 its reverse (54112043), we get a palindrome (88133188).

The spelling of 34021145 in words is "thirty-four million, twenty-one thousand, one hundred forty-five".