121838897 has 8 divisors (see below), whose sum is σ = 127648512. Its totient is φ = 116146800.

The previous prime is 121838879. The next prime is 121838933. The reversal of 121838897 is 798838121.

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 121838897 - 2¹⁰ = 121837873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121838807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27254 + ... + 31407.

It is an arithmetic number, because the mean of its divisors is an integer number (15956064).

Almost surely, 2^121838897 is an apocalyptic number.

It is an amenable number.

121838897 is a deficient number, since it is larger than the sum of its proper divisors (5809615).

121838897 is an equidigital number, since it uses as much as digits as its factorization.

121838897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58759.

The product of its digits is 193536, while the sum is 47.

The square root of 121838897 is about 11038.0658178868. The cubic root of 121838897 is about 495.7491591185.

The spelling of 121838897 in words is "one hundred twenty-one million, eight hundred thirty-eight thousand, eight hundred ninety-seven".