121334147 has 4 divisors (see below), whose sum is σ = 132364536. Its totient is φ = 110303760.

The previous prime is 121334141. The next prime is 121334167. The reversal of 121334147 is 741433121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121334147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121334141) 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, 5515178 + ... + 5515199.

It is an arithmetic number, because the mean of its divisors is an integer number (33091134).

Almost surely, 2^121334147 is an apocalyptic number.

121334147 is a deficient number, since it is larger than the sum of its proper divisors (11030389).

121334147 is a wasteful number, since it uses less digits than its factorization.

121334147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11030388.

The product of its digits is 2016, while the sum is 26.

The square root of 121334147 is about 11015.1780285205. The cubic root of 121334147 is about 495.0636207041.

Adding to 121334147 its reverse (741433121), we get a palindrome (862767268).

The spelling of 121334147 in words is "one hundred twenty-one million, three hundred thirty-four thousand, one hundred forty-seven".