121970717 has 8 divisors (see below), whose sum is σ = 133166592. Its totient is φ = 110792800.

The previous prime is 121970711. The next prime is 121970729. The reversal of 121970717 is 717079121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121970717 - 2⁴ = 121970701 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 (121970711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12548 + ... + 20034.

It is an arithmetic number, because the mean of its divisors is an integer number (16645824).

Almost surely, 2^121970717 is an apocalyptic number.

It is an amenable number.

121970717 is a deficient number, since it is larger than the sum of its proper divisors (11195875).

121970717 is a wasteful number, since it uses less digits than its factorization.

121970717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8979.

The product of its (nonzero) digits is 6174, while the sum is 35.

The square root of 121970717 is about 11044.0353585091. The cubic root of 121970717 is about 495.9278817383.

The spelling of 121970717 in words is "one hundred twenty-one million, nine hundred seventy thousand, seven hundred seventeen".