134352121 has 4 divisors (see below), whose sum is σ = 137629044. Its totient is φ = 131075200.

The previous prime is 134352091. The next prime is 134352149. The reversal of 134352121 is 121253431.

It is a happy number.

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 16933225 + 117418896 = 4115^2 + 10836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134352121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134352092 and 134352101.

It is not an unprimeable number, because it can be changed into a prime (134352151) 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, 1638400 + ... + 1638481.

It is an arithmetic number, because the mean of its divisors is an integer number (34407261).

Almost surely, 2^134352121 is an apocalyptic number.

It is an amenable number.

134352121 is a deficient number, since it is larger than the sum of its proper divisors (3276923).

134352121 is an equidigital number, since it uses as much as digits as its factorization.

134352121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276922.

The product of its digits is 720, while the sum is 22.

The square root of 134352121 is about 11591.0362349533. The cubic root of 134352121 is about 512.1708325307.

The spelling of 134352121 in words is "one hundred thirty-four million, three hundred fifty-two thousand, one hundred twenty-one".