121444500 has 48 divisors (see below), whose sum is σ = 353650752. Its totient is φ = 32384800.

The previous prime is 121444487. The next prime is 121444511. The reversal of 121444500 is 5444121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 38982 + ... + 41981.

It is an arithmetic number, because the mean of its divisors is an integer number (7367724).

Almost surely, 2^121444500 is an apocalyptic number.

121444500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121444500 is an abundant number, since it is smaller than the sum of its proper divisors (232206252).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121444500 is a wasteful number, since it uses less digits than its factorization.

121444500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80985 (or 80973 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 121444500 is about 11020.1860238383. The cubic root of 121444500 is about 495.2136614606.

Adding to 121444500 its reverse (5444121), we get a palindrome (126888621).

The spelling of 121444500 in words is "one hundred twenty-one million, four hundred forty-four thousand, five hundred".