121360129 has 8 divisors (see below), whose sum is σ = 132945120. Its totient is φ = 109867200.

The previous prime is 121360097. The next prime is 121360159. The reversal of 121360129 is 921063121.

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 121360129 - 2⁵ = 121360097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121360159) 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, 20239 + ... + 25540.

It is an arithmetic number, because the mean of its divisors is an integer number (16618140).

Almost surely, 2^121360129 is an apocalyptic number.

It is an amenable number.

121360129 is a deficient number, since it is larger than the sum of its proper divisors (11584991).

121360129 is a wasteful number, since it uses less digits than its factorization.

121360129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46031.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 121360129 is about 11016.3573380678. The cubic root of 121360129 is about 495.0989551511.

The spelling of 121360129 in words is "one hundred twenty-one million, three hundred sixty thousand, one hundred twenty-nine".