134323121 has 4 divisors (see below), whose sum is σ = 134368752. Its totient is φ = 134277492.

The previous prime is 134323043. The next prime is 134323129. The reversal of 134323121 is 121323431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121323431 = 109 ⋅1113059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134323121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134323093 and 134323102.

It is not an unprimeable number, because it can be changed into a prime (134323129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18071 + ... + 24396.

It is an arithmetic number, because the mean of its divisors is an integer number (33592188).

Almost surely, 2^134323121 is an apocalyptic number.

It is an amenable number.

134323121 is a deficient number, since it is larger than the sum of its proper divisors (45631).

134323121 is an equidigital number, since it uses as much as digits as its factorization.

134323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45630.

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

The square root of 134323121 is about 11589.7852007705. The cubic root of 134323121 is about 512.1339790672.

Adding to 134323121 its reverse (121323431), we get a palindrome (255646552).

The spelling of 134323121 in words is "one hundred thirty-four million, three hundred twenty-three thousand, one hundred twenty-one".