121663246 has 4 divisors (see below), whose sum is σ = 182494872. Its totient is φ = 60831622.

The previous prime is 121663229. The next prime is 121663247. The reversal of 121663246 is 642366121.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121663247) 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 as a sum of consecutive naturals, namely, 30415810 + ... + 30415813.

It is an arithmetic number, because the mean of its divisors is an integer number (45623718).

Almost surely, 2^121663246 is an apocalyptic number.

121663246 is a deficient number, since it is larger than the sum of its proper divisors (60831626).

121663246 is an equidigital number, since it uses as much as digits as its factorization.

121663246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60831625.

The product of its digits is 10368, while the sum is 31.

The square root of 121663246 is about 11030.1063458155. The cubic root of 121663246 is about 495.5108096329.

The spelling of 121663246 in words is "one hundred twenty-one million, six hundred sixty-three thousand, two hundred forty-six".