121546689 has 8 divisors (see below), whose sum is σ = 176795232. Its totient is φ = 73664640.

The previous prime is 121546687. The next prime is 121546693. The reversal of 121546689 is 986645121.

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

It is not a de Polignac number, because 121546689 - 2¹ = 121546687 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121546689.

It is not an unprimeable number, because it can be changed into a prime (121546687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1841584 + ... + 1841649.

It is an arithmetic number, because the mean of its divisors is an integer number (22099404).

Almost surely, 2^121546689 is an apocalyptic number.

It is an amenable number.

121546689 is a deficient number, since it is larger than the sum of its proper divisors (55248543).

121546689 is a wasteful number, since it uses less digits than its factorization.

121546689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683247.

The product of its digits is 103680, while the sum is 42.

The square root of 121546689 is about 11024.8214951536. The cubic root of 121546689 is about 495.3525210538.

The spelling of 121546689 in words is "one hundred twenty-one million, five hundred forty-six thousand, six hundred eighty-nine".