134251121 has 4 divisors (see below), whose sum is σ = 138880500. Its totient is φ = 129621744.

The previous prime is 134251087. The next prime is 134251141. The reversal of 134251121 is 121152431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121152431 = 23 ⋅5267497.

It can be written as a sum of positive squares in 2 ways, for example, as 58369600 + 75881521 = 7640^2 + 8711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134251121 is a prime.

It is a super-3 number, since 3×134251121³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134251093 and 134251102.

It is not an unprimeable number, because it can be changed into a prime (134251141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2314646 + ... + 2314703.

It is an arithmetic number, because the mean of its divisors is an integer number (34720125).

Almost surely, 2^134251121 is an apocalyptic number.

It is an amenable number.

134251121 is a deficient number, since it is larger than the sum of its proper divisors (4629379).

134251121 is an equidigital number, since it uses as much as digits as its factorization.

134251121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4629378.

The product of its digits is 240, while the sum is 20.

The square root of 134251121 is about 11586.6786008761. The cubic root of 134251121 is about 512.0424578743.

The spelling of 134251121 in words is "one hundred thirty-four million, two hundred fifty-one thousand, one hundred twenty-one".