34250221 has 4 divisors (see below), whose sum is σ = 34308000. Its totient is φ = 34192444.

The previous prime is 34250191. The next prime is 34250261. The reversal of 34250221 is 12205243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12205243 = 113 ⋅108011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34250221 is a prime.

It is a super-4 number, since 4×34250221⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34250261) 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, 27991 + ... + 29188.

It is an arithmetic number, because the mean of its divisors is an integer number (8577000).

Almost surely, 2^34250221 is an apocalyptic number.

It is an amenable number.

34250221 is a deficient number, since it is larger than the sum of its proper divisors (57779).

34250221 is an equidigital number, since it uses as much as digits as its factorization.

34250221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57778.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 34250221 is about 5852.3688366336. The cubic root of 34250221 is about 324.7539629002.

Adding to 34250221 its reverse (12205243), we get a palindrome (46455464).

The spelling of 34250221 in words is "thirty-four million, two hundred fifty thousand, two hundred twenty-one".