121065806 has 8 divisors (see below), whose sum is σ = 192281040. Its totient is φ = 56972128.

The previous prime is 121065799. The next prime is 121065809. The reversal of 121065806 is 608560121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121065809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780346 + ... + 1780413.

It is an arithmetic number, because the mean of its divisors is an integer number (24035130).

Almost surely, 2^121065806 is an apocalyptic number.

121065806 is a deficient number, since it is larger than the sum of its proper divisors (71215234).

121065806 is a wasteful number, since it uses less digits than its factorization.

121065806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560778.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 121065806 is about 11002.9907752392. The cubic root of 121065806 is about 494.6983926013.

The spelling of 121065806 in words is "one hundred twenty-one million, sixty-five thousand, eight hundred six".