121424365 has 16 divisors (see below), whose sum is σ = 151810560. Its totient is φ = 93130560.

The previous prime is 121424357. The next prime is 121424377. The reversal of 121424365 is 563424121.

It is not a de Polignac number, because 121424365 - 2³ = 121424357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13302 + ... + 20488.

It is an arithmetic number, because the mean of its divisors is an integer number (9488160).

Almost surely, 2^121424365 is an apocalyptic number.

It is an amenable number.

121424365 is a deficient number, since it is larger than the sum of its proper divisors (30386195).

121424365 is a wasteful number, since it uses less digits than its factorization.

121424365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332.

The product of its digits is 5760, while the sum is 28.

The square root of 121424365 is about 11019.2724351474. The cubic root of 121424365 is about 495.1862918167.

Adding to 121424365 its reverse (563424121), we get a palindrome (684848486).

The spelling of 121424365 in words is "one hundred twenty-one million, four hundred twenty-four thousand, three hundred sixty-five".