121635448 has 16 divisors (see below), whose sum is σ = 248799960. Its totient is φ = 55288800.

The previous prime is 121635427. The next prime is 121635457. The reversal of 121635448 is 844536121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691023 + ... + 691198.

Almost surely, 2^121635448 is an apocalyptic number.

It is an amenable number.

121635448 is an abundant number, since it is smaller than the sum of its proper divisors (127164512).

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

121635448 is a wasteful number, since it uses less digits than its factorization.

121635448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382238 (or 1382234 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 121635448 is about 11028.8461771846. The cubic root of 121635448 is about 495.4730681370.

The spelling of 121635448 in words is "one hundred twenty-one million, six hundred thirty-five thousand, four hundred forty-eight".