121286946 has 16 divisors (see below), whose sum is σ = 264626208. Its totient is φ = 36753600.

The previous prime is 121286941. The next prime is 121286947. The reversal of 121286946 is 649682121.

It is not an unprimeable number, because it can be changed into a prime (121286941) 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 7 ways as a sum of consecutive naturals, for example, 918775 + ... + 918906.

It is an arithmetic number, because the mean of its divisors is an integer number (16539138).

Almost surely, 2^121286946 is an apocalyptic number.

121286946 is an abundant number, since it is smaller than the sum of its proper divisors (143339262).

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

121286946 is a wasteful number, since it uses less digits than its factorization.

121286946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837697.

The product of its digits is 41472, while the sum is 39.

The square root of 121286946 is about 11013.0352764349. The cubic root of 121286946 is about 494.9994163854. Note that the first 3 decimals are identical.

The spelling of 121286946 in words is "one hundred twenty-one million, two hundred eighty-six thousand, nine hundred forty-six".