121601241 has 6 divisors (see below), whose sum is σ = 175646250. Its totient is φ = 81067488.

The previous prime is 121601213. The next prime is 121601257. The reversal of 121601241 is 142106121.

121601241 is a `hidden beast` number, since 1 + 21 + 601 + 2 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 63536841 + 58064400 = 7971^2 + 7620^2 .

It is not a de Polignac number, because 121601241 - 2⁵ = 121601209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121601261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6755616 + ... + 6755633.

It is an arithmetic number, because the mean of its divisors is an integer number (29274375).

Almost surely, 2^121601241 is an apocalyptic number.

It is an amenable number.

121601241 is a deficient number, since it is larger than the sum of its proper divisors (54045009).

121601241 is a wasteful number, since it uses less digits than its factorization.

121601241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13511255 (or 13511252 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 121601241 is about 11027.2952712803. The cubic root of 121601241 is about 495.4266172146.

Adding to 121601241 its reverse (142106121), we get a palindrome (263707362).

The spelling of 121601241 in words is "one hundred twenty-one million, six hundred one thousand, two hundred forty-one".