134405121 has 8 divisors (see below), whose sum is σ = 179565120. Its totient is φ = 89424272.

The previous prime is 134405099. The next prime is 134405203. The reversal of 134405121 is 121504431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134405121 - 2²⁷ = 187393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134405321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43026 + ... + 46043.

It is an arithmetic number, because the mean of its divisors is an integer number (22445640).

Almost surely, 2^134405121 is an apocalyptic number.

It is an amenable number.

134405121 is a deficient number, since it is larger than the sum of its proper divisors (45159999).

134405121 is an equidigital number, since it uses as much as digits as its factorization.

134405121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89575.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 134405121 is about 11593.3222589558. The cubic root of 134405121 is about 512.2381717119.

Adding to 134405121 its reverse (121504431), we get a palindrome (255909552).

The spelling of 134405121 in words is "one hundred thirty-four million, four hundred five thousand, one hundred twenty-one".