121135786 has 8 divisors (see below), whose sum is σ = 187565184. Its totient is φ = 58614060.

The previous prime is 121135783. The next prime is 121135801. The reversal of 121135786 is 687531121.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (121135783) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 976840 + ... + 976963.

It is an arithmetic number, because the mean of its divisors is an integer number (23445648).

Almost surely, 2^121135786 is an apocalyptic number.

121135786 is a deficient number, since it is larger than the sum of its proper divisors (66429398).

121135786 is a wasteful number, since it uses less digits than its factorization.

121135786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953836.

The product of its digits is 10080, while the sum is 34.

The square root of 121135786 is about 11006.1703603024. The cubic root of 121135786 is about 494.7936915314.

The spelling of 121135786 in words is "one hundred twenty-one million, one hundred thirty-five thousand, seven hundred eighty-six".