121358438 has 8 divisors (see below), whose sum is σ = 182145432. Its totient is φ = 60643296.

The previous prime is 121358423. The next prime is 121358441. The reversal of 121358438 is 834853121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 121358398 and 121358407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13520 + ... + 20627.

It is an arithmetic number, because the mean of its divisors is an integer number (22768179).

Almost surely, 2^121358438 is an apocalyptic number.

121358438 is a deficient number, since it is larger than the sum of its proper divisors (60786994).

121358438 is a wasteful number, since it uses less digits than its factorization.

121358438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35926.

The product of its digits is 23040, while the sum is 35.

The square root of 121358438 is about 11016.2805882929. The cubic root of 121358438 is about 495.0966556144.

The spelling of 121358438 in words is "one hundred twenty-one million, three hundred fifty-eight thousand, four hundred thirty-eight".