134043221 has 8 divisors (see below), whose sum is σ = 146801760. Its totient is φ = 121634352.

The previous prime is 134043209. The next prime is 134043223. The reversal of 134043221 is 122340431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134043221 - 2¹⁰ = 134042197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134043193 and 134043202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134043223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86615 + ... + 88148.

It is an arithmetic number, because the mean of its divisors is an integer number (18350220).

Almost surely, 2^134043221 is an apocalyptic number.

It is an amenable number.

134043221 is a deficient number, since it is larger than the sum of its proper divisors (12758539).

134043221 is a wasteful number, since it uses less digits than its factorization.

134043221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174835.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 134043221 is about 11577.7036151389. The cubic root of 134043221 is about 511.7780066366.

Adding to 134043221 its reverse (122340431), we get a palindrome (256383652).

The spelling of 134043221 in words is "one hundred thirty-four million, forty-three thousand, two hundred twenty-one".