134320331 has 4 divisors (see below), whose sum is σ = 134371152. Its totient is φ = 134269512.

The previous prime is 134320309. The next prime is 134320363. The reversal of 134320331 is 133023431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133023431 = 157 ⋅847283.

It is a cyclic number.

It is not a de Polignac number, because 134320331 - 2¹⁰ = 134319307 is a prime.

It is a super-2 number, since 2×134320331² = 36083902639899122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134320301) 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, 21215 + ... + 26808.

It is an arithmetic number, because the mean of its divisors is an integer number (33592788).

Almost surely, 2^134320331 is an apocalyptic number.

134320331 is a deficient number, since it is larger than the sum of its proper divisors (50821).

134320331 is an equidigital number, since it uses as much as digits as its factorization.

134320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50820.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 134320331 is about 11589.6648355334. The cubic root of 134320331 is about 512.1304332302.

Adding to 134320331 its reverse (133023431), we get a palindrome (267343762).

The spelling of 134320331 in words is "one hundred thirty-four million, three hundred twenty thousand, three hundred thirty-one".