134303221 has 4 divisors (see below), whose sum is σ = 144634252. Its totient is φ = 123972192.

The previous prime is 134303209. The next prime is 134303243. The reversal of 134303221 is 122303431.

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 33802596 + 100500625 = 5814^2 + 10025^2 .

It is a cyclic number.

It is not a de Polignac number, because 134303221 - 2⁵ = 134303189 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 (134303251) 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, 5165496 + ... + 5165521.

It is an arithmetic number, because the mean of its divisors is an integer number (36158563).

Almost surely, 2^134303221 is an apocalyptic number.

It is an amenable number.

134303221 is a deficient number, since it is larger than the sum of its proper divisors (10331031).

134303221 is a wasteful number, since it uses less digits than its factorization.

134303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331030.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 134303221 is about 11588.9266543541. The cubic root of 134303221 is about 512.1086868975.

Adding to 134303221 its reverse (122303431), we get a palindrome (256606652).

The spelling of 134303221 in words is "one hundred thirty-four million, three hundred three thousand, two hundred twenty-one".