121242064 has 10 divisors (see below), whose sum is σ = 234906530. Its totient is φ = 60621024.

The previous prime is 121242049. The next prime is 121242083. The reversal of 121242064 is 460242121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 242064 = 11000^2 + 492^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3788799 + ... + 3788830.

It is an arithmetic number, because the mean of its divisors is an integer number (23490653).

Almost surely, 2^121242064 is an apocalyptic number.

It is an amenable number.

121242064 is a deficient number, since it is larger than the sum of its proper divisors (113664466).

121242064 is an equidigital number, since it uses as much as digits as its factorization.

121242064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577637 (or 7577631 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 121242064 is about 11010.9974116789. The cubic root of 121242064 is about 494.9383509932.

Adding to 121242064 its reverse (460242121), we get a palindrome (581484185).

It can be divided in two parts, 121 and 242064, that multiplied together give a square (29289744 = 5412²).

The spelling of 121242064 in words is "one hundred twenty-one million, two hundred forty-two thousand, sixty-four".