121424875 has 32 divisors (see below), whose sum is σ = 178057152. Its totient is φ = 81504000.

The previous prime is 121424873. The next prime is 121424909. The reversal of 121424875 is 578424121.

It is not a de Polignac number, because 121424875 - 2¹ = 121424873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121424875.

It is not an unprimeable number, because it can be changed into a prime (121424873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14479 + ... + 21271.

It is an arithmetic number, because the mean of its divisors is an integer number (5564286).

Almost surely, 2^121424875 is an apocalyptic number.

121424875 is a deficient number, since it is larger than the sum of its proper divisors (56632277).

121424875 is a wasteful number, since it uses less digits than its factorization.

121424875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832 (or 6822 counting only the distinct ones).

The product of its digits is 17920, while the sum is 34.

The square root of 121424875 is about 11019.2955763969. The cubic root of 121424875 is about 495.1869851005.

Adding to 121424875 its reverse (578424121), we get a palindrome (699848996).

The spelling of 121424875 in words is "one hundred twenty-one million, four hundred twenty-four thousand, eight hundred seventy-five".