34102021 has 4 divisors (see below), whose sum is σ = 34129612. Its totient is φ = 34074432.

The previous prime is 34102001. The next prime is 34102063. The reversal of 34102021 is 12020143.

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 33930625 + 171396 = 5825^2 + 414^2 .

It is a cyclic number.

It is not a de Polignac number, because 34102021 - 2¹¹ = 34099973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34101992 and 34102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34102001) 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, 11850 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (8532403).

Almost surely, 2^34102021 is an apocalyptic number.

It is an amenable number.

34102021 is a deficient number, since it is larger than the sum of its proper divisors (27591).

34102021 is a wasteful number, since it uses less digits than its factorization.

34102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27590.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 34102021 is about 5839.6935707278. The cubic root of 34102021 is about 324.2848844504.

Adding to 34102021 its reverse (12020143), we get a palindrome (46122164).

The spelling of 34102021 in words is "thirty-four million, one hundred two thousand, twenty-one".