134112021 has 4 divisors (see below), whose sum is σ = 178816032. Its totient is φ = 89408012.

The previous prime is 134112001. The next prime is 134112047. The reversal of 134112021 is 120211431.

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: 120211431 = 3 ⋅40070477.

It is a cyclic number.

It is not a de Polignac number, because 134112021 - 2⁷ = 134111893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134112001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22352001 + ... + 22352006.

It is an arithmetic number, because the mean of its divisors is an integer number (44704008).

Almost surely, 2^134112021 is an apocalyptic number.

It is an amenable number.

134112021 is a deficient number, since it is larger than the sum of its proper divisors (44704011).

134112021 is an equidigital number, since it uses as much as digits as its factorization.

134112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44704010.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 134112021 is about 11580.6744622237. The cubic root of 134112021 is about 511.8655512962.

Adding to 134112021 its reverse (120211431), we get a palindrome (254323452).

The spelling of 134112021 in words is "one hundred thirty-four million, one hundred twelve thousand, twenty-one".