121766017 has 4 divisors (see below), whose sum is σ = 121806640. Its totient is φ = 121725396.

The previous prime is 121765999. The next prime is 121766039. The reversal of 121766017 is 710667121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121766017 - 2¹¹ = 121763969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121766017.

It is not an unprimeable number, because it can be changed into a prime (121766317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15423 + ... + 21940.

It is an arithmetic number, because the mean of its divisors is an integer number (30451660).

Almost surely, 2^121766017 is an apocalyptic number.

It is an amenable number.

121766017 is a deficient number, since it is larger than the sum of its proper divisors (40623).

121766017 is an equidigital number, since it uses as much as digits as its factorization.

121766017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40622.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 121766017 is about 11034.7640210382. The cubic root of 121766017 is about 495.6502924841.

The spelling of 121766017 in words is "one hundred twenty-one million, seven hundred sixty-six thousand, seventeen".