121040624 has 20 divisors (see below), whose sum is σ = 238492920. Its totient is φ = 59494080.

The previous prime is 121040617. The next prime is 121040669. The reversal of 121040624 is 426040121.

It is a junction number, because it is equal to n+sod(n) for n = 121040596 and 121040605.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 63167 + ... + 65054.

It is an arithmetic number, because the mean of its divisors is an integer number (11924646).

Almost surely, 2^121040624 is an apocalyptic number.

It is an amenable number.

121040624 is a deficient number, since it is larger than the sum of its proper divisors (117452296).

121040624 is a wasteful number, since it uses less digits than its factorization.

121040624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128288 (or 128282 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 121040624 is about 11001.8463904928. The cubic root of 121040624 is about 494.6640907089.

Adding to 121040624 its reverse (426040121), we get a palindrome (547080745).

The spelling of 121040624 in words is "one hundred twenty-one million, forty thousand, six hundred twenty-four".