34221013 has 4 divisors (see below), whose sum is σ = 34689868. Its totient is φ = 33752160.

The previous prime is 34221007. The next prime is 34221037. The reversal of 34221013 is 31012243.

It is a happy number.

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 24373969 + 9847044 = 4937^2 + 3138^2 .

It is a cyclic number.

It is not a de Polignac number, because 34221013 - 2⁵ = 34220981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34221043) 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, 234318 + ... + 234463.

It is an arithmetic number, because the mean of its divisors is an integer number (8672467).

Almost surely, 2^34221013 is an apocalyptic number.

It is an amenable number.

34221013 is a deficient number, since it is larger than the sum of its proper divisors (468855).

34221013 is an equidigital number, since it uses as much as digits as its factorization.

34221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468854.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 34221013 is about 5849.8729046023. The cubic root of 34221013 is about 324.6616217796.

Adding to 34221013 its reverse (31012243), we get a palindrome (65233256).

The spelling of 34221013 in words is "thirty-four million, two hundred twenty-one thousand, thirteen".