121827329 has 8 divisors (see below), whose sum is σ = 131503680. Its totient is φ = 112194576.

The previous prime is 121827319. The next prime is 121827331. The reversal of 121827329 is 923728121.

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

It is a de Polignac number, because none of the positive numbers 2^k-121827329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121827319) 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, 4967 + ... + 16380.

It is an arithmetic number, because the mean of its divisors is an integer number (16437960).

Almost surely, 2^121827329 is an apocalyptic number.

It is an amenable number.

121827329 is a deficient number, since it is larger than the sum of its proper divisors (9676351).

121827329 is a wasteful number, since it uses less digits than its factorization.

121827329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21799.

The product of its digits is 12096, while the sum is 35.

The square root of 121827329 is about 11037.5418006003. The cubic root of 121827329 is about 495.7334689793.

The spelling of 121827329 in words is "one hundred twenty-one million, eight hundred twenty-seven thousand, three hundred twenty-nine".