121648146 has 24 divisors (see below), whose sum is σ = 256349520. Its totient is φ = 38378016.

The previous prime is 121648139. The next prime is 121648171. The reversal of 121648146 is 641846121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117246 + ... + 118278.

It is an arithmetic number, because the mean of its divisors is an integer number (10681230).

Almost surely, 2^121648146 is an apocalyptic number.

121648146 is an abundant number, since it is smaller than the sum of its proper divisors (134701374).

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

121648146 is an equidigital number, since it uses as much as digits as its factorization.

121648146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 1057 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 121648146 is about 11029.4218343483. The cubic root of 121648146 is about 495.4903089941.

The spelling of 121648146 in words is "one hundred twenty-one million, six hundred forty-eight thousand, one hundred forty-six".