121617043 has 8 divisors (see below), whose sum is σ = 128157120. Its totient is φ = 115090920.

The previous prime is 121617037. The next prime is 121617073. The reversal of 121617043 is 340716121.

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 121617043 - 2⁹ = 121616531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121616999 and 121617017.

It is not an unprimeable number, because it can be changed into a prime (121617073) 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, 17796 + ... + 23662.

It is an arithmetic number, because the mean of its divisors is an integer number (16019640).

Almost surely, 2^121617043 is an apocalyptic number.

121617043 is a deficient number, since it is larger than the sum of its proper divisors (6540077).

121617043 is a wasteful number, since it uses less digits than its factorization.

121617043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6977.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 121617043 is about 11028.0117428302. The cubic root of 121617043 is about 495.4480764044.

The spelling of 121617043 in words is "one hundred twenty-one million, six hundred seventeen thousand, forty-three".