121446993 has 16 divisors (see below), whose sum is σ = 170786880. Its totient is φ = 76552704.

The previous prime is 121446989. The next prime is 121447019. The reversal of 121446993 is 399644121.

It is not a de Polignac number, because 121446993 - 2² = 121446989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121446943) 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 15 ways as a sum of consecutive naturals, for example, 32005 + ... + 35597.

It is an arithmetic number, because the mean of its divisors is an integer number (10674180).

Almost surely, 2^121446993 is an apocalyptic number.

It is an amenable number.

121446993 is a deficient number, since it is larger than the sum of its proper divisors (49339887).

121446993 is a wasteful number, since it uses less digits than its factorization.

121446993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208.

The product of its digits is 46656, while the sum is 39.

The square root of 121446993 is about 11020.2991338711. The cubic root of 121446993 is about 495.2170500022.

The spelling of 121446993 in words is "one hundred twenty-one million, four hundred forty-six thousand, nine hundred ninety-three".