121051506 has 16 divisors (see below), whose sum is σ = 242272800. Its totient is φ = 40322208.

The previous prime is 121051499. The next prime is 121051517. The reversal of 121051506 is 605150121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3385 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (15142050).

Almost surely, 2^121051506 is an apocalyptic number.

121051506 is an abundant number, since it is smaller than the sum of its proper divisors (121221294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121051506 is a wasteful number, since it uses less digits than its factorization.

121051506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 121051506 is about 11002.3409327288. The cubic root of 121051506 is about 494.6789143088.

The spelling of 121051506 in words is "one hundred twenty-one million, fifty-one thousand, five hundred six".