121004541 has 72 divisors (see below), whose sum is σ = 217736064. Its totient is φ = 63296640.

The previous prime is 121004447. The next prime is 121004551. The reversal of 121004541 is 145400121.

121004541 is a `hidden beast` number, since 1 + 210 + 0 + 454 + 1 = 666.

It is not a de Polignac number, because 121004541 - 2¹⁰ = 121003517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121004551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1983651 + ... + 1983711.

It is an arithmetic number, because the mean of its divisors is an integer number (3024112).

Almost surely, 2^121004541 is an apocalyptic number.

It is an amenable number.

121004541 is a deficient number, since it is larger than the sum of its proper divisors (96731523).

121004541 is a wasteful number, since it uses less digits than its factorization.

121004541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121004541 is about 11000.2064071544. The cubic root of 121004541 is about 494.6149316257.

Adding to 121004541 its reverse (145400121), we get a palindrome (266404662).

It can be divided in two parts, 12100 and 4541, that added together give a square (16641 = 129²).

The spelling of 121004541 in words is "one hundred twenty-one million, four thousand, five hundred forty-one".