121847663 has 16 divisors (see below), whose sum is σ = 143188800. Its totient is φ = 103638528.

The previous prime is 121847659. The next prime is 121847707. The reversal of 121847663 is 366748121.

It is not a de Polignac number, because 121847663 - 2² = 121847659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121847263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45695 + ... + 48287.

It is an arithmetic number, because the mean of its divisors is an integer number (8949300).

Almost surely, 2^121847663 is an apocalyptic number.

121847663 is a deficient number, since it is larger than the sum of its proper divisors (21341137).

121847663 is an equidigital number, since it uses as much as digits as its factorization.

121847663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2737 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 121847663 is about 11038.4628911819. The cubic root of 121847663 is about 495.7610481321.

The spelling of 121847663 in words is "one hundred twenty-one million, eight hundred forty-seven thousand, six hundred sixty-three".