121541641 has 8 divisors (see below), whose sum is σ = 131019840. Its totient is φ = 112081872.

The previous prime is 121541627. The next prime is 121541657. The reversal of 121541641 is 146145121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121541641 - 2⁹ = 121541129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121541611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11100 + ... + 19138.

It is an arithmetic number, because the mean of its divisors is an integer number (16377480).

Almost surely, 2^121541641 is an apocalyptic number.

It is an amenable number.

121541641 is a deficient number, since it is larger than the sum of its proper divisors (9478199).

121541641 is a wasteful number, since it uses less digits than its factorization.

121541641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9215.

The product of its digits is 960, while the sum is 25.

The square root of 121541641 is about 11024.5925548294. The cubic root of 121541641 is about 495.3456634033.

Adding to 121541641 its reverse (146145121), we get a palindrome (267686762).

The spelling of 121541641 in words is "one hundred twenty-one million, five hundred forty-one thousand, six hundred forty-one".