134313221 has 16 divisors (see below), whose sum is σ = 155447424. Its totient is φ = 113676864.

The previous prime is 134313163. The next prime is 134313227. The reversal of 134313221 is 122313431.

It is a de Polignac number, because none of the positive numbers 2^k-134313221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 134313193 and 134313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134313227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238286 + ... + 238848.

It is an arithmetic number, because the mean of its divisors is an integer number (9715464).

Almost surely, 2^134313221 is an apocalyptic number.

It is an amenable number.

134313221 is a deficient number, since it is larger than the sum of its proper divisors (21134203).

134313221 is a wasteful number, since it uses less digits than its factorization.

134313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its digits is 432, while the sum is 20.

The square root of 134313221 is about 11589.3580926641. The cubic root of 134313221 is about 512.1213968428.

Adding to 134313221 its reverse (122313431), we get a palindrome (256626652).

The spelling of 134313221 in words is "one hundred thirty-four million, three hundred thirteen thousand, two hundred twenty-one".