121917248 has 28 divisors (see below), whose sum is σ = 247083072. Its totient is φ = 59660160.

The previous prime is 121917239. The next prime is 121917253. The reversal of 121917248 is 842719121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17258 + ... + 23273.

Almost surely, 2^121917248 is an apocalyptic number.

It is an amenable number.

121917248 is an abundant number, since it is smaller than the sum of its proper divisors (125165824).

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

121917248 is an equidigital number, since it uses as much as digits as its factorization.

121917248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40590 (or 40580 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 121917248 is about 11041.6143747189. The cubic root of 121917248 is about 495.8554035669.

The spelling of 121917248 in words is "one hundred twenty-one million, nine hundred seventeen thousand, two hundred forty-eight".