121446644 has 12 divisors (see below), whose sum is σ = 231852768. Its totient is φ = 55203000.

The previous prime is 121446631. The next prime is 121446649. The reversal of 121446644 is 446644121.

It is a self number, because there is not a number n which added to its sum of digits gives 121446644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121446649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380032 + ... + 1380119.

It is an arithmetic number, because the mean of its divisors is an integer number (19321064).

Almost surely, 2^121446644 is an apocalyptic number.

It is an amenable number.

121446644 is a deficient number, since it is larger than the sum of its proper divisors (110406124).

121446644 is a wasteful number, since it uses less digits than its factorization.

121446644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760166 (or 2760164 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 121446644 is about 11020.2832994438. The cubic root of 121446644 is about 495.2165756364.

The spelling of 121446644 in words is "one hundred twenty-one million, four hundred forty-six thousand, six hundred forty-four".