121135141 has 4 divisors (see below), whose sum is σ = 122496300. Its totient is φ = 119773984.

The previous prime is 121135111. The next prime is 121135169. The reversal of 121135141 is 141531121.

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 81180100 + 39955041 = 9010^2 + 6321^2 .

It is a cyclic number.

It is not a de Polignac number, because 121135141 - 2⁵ = 121135109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121135111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680446 + ... + 680623.

It is an arithmetic number, because the mean of its divisors is an integer number (30624075).

Almost surely, 2^121135141 is an apocalyptic number.

It is an amenable number.

121135141 is a deficient number, since it is larger than the sum of its proper divisors (1361159).

121135141 is an equidigital number, since it uses as much as digits as its factorization.

121135141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361158.

The product of its digits is 120, while the sum is 19.

The square root of 121135141 is about 11006.1410585182. The cubic root of 121135141 is about 494.7928133365.

Adding to 121135141 its reverse (141531121), we get a palindrome (262666262).

The spelling of 121135141 in words is "one hundred twenty-one million, one hundred thirty-five thousand, one hundred forty-one".