134317321 has 4 divisors (see below), whose sum is σ = 135549700. Its totient is φ = 133084944.

The previous prime is 134317307. The next prime is 134317331. The reversal of 134317321 is 123713431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123713431 = 571 ⋅216661.

It can be written as a sum of positive squares in 2 ways, for example, as 122345721 + 11971600 = 11061^2 + 3460^2 .

It is a cyclic number.

It is not a de Polignac number, because 134317321 - 2⁷ = 134317193 is a prime.

It is a super-2 number, since 2×134317321² = 36082285441234082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134317331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616026 + ... + 616243.

It is an arithmetic number, because the mean of its divisors is an integer number (33887425).

Almost surely, 2^134317321 is an apocalyptic number.

It is an amenable number.

134317321 is a deficient number, since it is larger than the sum of its proper divisors (1232379).

134317321 is a wasteful number, since it uses less digits than its factorization.

134317321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232378.

The product of its digits is 1512, while the sum is 25.

The square root of 134317321 is about 11589.5349777288. The cubic root of 134317321 is about 512.1266077380.

The spelling of 134317321 in words is "one hundred thirty-four million, three hundred seventeen thousand, three hundred twenty-one".