121600144 has 40 divisors (see below), whose sum is σ = 239220800. Its totient is φ = 59875200.

The previous prime is 121600097. The next prime is 121600147. The reversal of 121600144 is 441006121.

It is not an unprimeable number, because it can be changed into a prime (121600147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576199 + ... + 576409.

It is an arithmetic number, because the mean of its divisors is an integer number (5980520).

Almost surely, 2^121600144 is an apocalyptic number.

It is an amenable number.

121600144 is a deficient number, since it is larger than the sum of its proper divisors (117620656).

121600144 is a wasteful number, since it uses less digits than its factorization.

121600144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599 (or 593 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 121600144 is about 11027.2455309565. The cubic root of 121600144 is about 495.4251274145.

Adding to 121600144 its reverse (441006121), we get a palindrome (562606265).

The spelling of 121600144 in words is "one hundred twenty-one million, six hundred thousand, one hundred forty-four".