121636146 has 16 divisors (see below), whose sum is σ = 243559008. Its totient is φ = 40497600.

The previous prime is 121636129. The next prime is 121636159. The reversal of 121636146 is 641636121.

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, 6220 + ... + 16791.

It is an arithmetic number, because the mean of its divisors is an integer number (15222438).

Almost surely, 2^121636146 is an apocalyptic number.

121636146 is an abundant number, since it is smaller than the sum of its proper divisors (121922862).

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

121636146 is a wasteful number, since it uses less digits than its factorization.

121636146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23897.

The product of its digits is 5184, while the sum is 30.

The square root of 121636146 is about 11028.8778214286. The cubic root of 121636146 is about 495.4740158858.

The spelling of 121636146 in words is "one hundred twenty-one million, six hundred thirty-six thousand, one hundred forty-six".