121962838 has 8 divisors (see below), whose sum is σ = 186836832. Its totient is φ = 59683896.

The previous prime is 121962833. The next prime is 121962857. The reversal of 121962838 is 838269121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121962838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121962833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648645 + ... + 648832.

It is an arithmetic number, because the mean of its divisors is an integer number (23354604).

Almost surely, 2^121962838 is an apocalyptic number.

121962838 is a deficient number, since it is larger than the sum of its proper divisors (64873994).

121962838 is a wasteful number, since it uses less digits than its factorization.

121962838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297526.

The product of its digits is 41472, while the sum is 40.

The square root of 121962838 is about 11043.6786443648. The cubic root of 121962838 is about 495.9172029459.

The spelling of 121962838 in words is "one hundred twenty-one million, nine hundred sixty-two thousand, eight hundred thirty-eight".