34121281 has 4 divisors (see below), whose sum is σ = 34338772. Its totient is φ = 33903792.

The previous prime is 34121267. The next prime is 34121323. The reversal of 34121281 is 18212143.

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 20394256 + 13727025 = 4516^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 34121281 - 2⁵ = 34121249 is a prime.

It is a super-2 number, since 2×34121281² = 2328523634161922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34121221) 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, 108510 + ... + 108823.

It is an arithmetic number, because the mean of its divisors is an integer number (8584693).

Almost surely, 2^34121281 is an apocalyptic number.

It is an amenable number.

34121281 is a deficient number, since it is larger than the sum of its proper divisors (217491).

34121281 is a wasteful number, since it uses less digits than its factorization.

34121281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217490.

The product of its digits is 384, while the sum is 22.

The square root of 34121281 is about 5841.3423970865. The cubic root of 34121281 is about 324.3459223913.

The spelling of 34121281 in words is "thirty-four million, one hundred twenty-one thousand, two hundred eighty-one".