34043521 has 4 divisors (see below), whose sum is σ = 34055892. Its totient is φ = 34031152.

The previous prime is 34043501. The next prime is 34043533. The reversal of 34043521 is 12534043.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12534043 = 1721 ⋅7283.

It can be written as a sum of positive squares in 2 ways, for example, as 23415921 + 10627600 = 4839^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 34043521 - 2⁷ = 34043393 is a prime.

It is a super-2 number, since 2×34043521² = 2317922644154882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34043492 and 34043501.

It is not an unprimeable number, because it can be changed into a prime (34043501) by changing a digit.

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, 15 + ... + 8251.

It is an arithmetic number, because the mean of its divisors is an integer number (8513973).

Almost surely, 2^34043521 is an apocalyptic number.

It is an amenable number.

34043521 is a deficient number, since it is larger than the sum of its proper divisors (12371).

34043521 is an equidigital number, since it uses as much as digits as its factorization.

34043521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12370.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 34043521 is about 5834.6825963372. The cubic root of 34043521 is about 324.0993478046.

Adding to 34043521 its reverse (12534043), we get a palindrome (46577564).

The spelling of 34043521 in words is "thirty-four million, forty-three thousand, five hundred twenty-one".