121773841 has 4 divisors (see below), whose sum is σ = 139170112. Its totient is φ = 104377572.

The previous prime is 121773809. The next prime is 121773853. The reversal of 121773841 is 148377121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121773841 - 2⁵ = 121773809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121773797 and 121773806.

It is not an unprimeable number, because it can be changed into a prime (121773881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8698125 + ... + 8698138.

It is an arithmetic number, because the mean of its divisors is an integer number (34792528).

Almost surely, 2^121773841 is an apocalyptic number.

It is an amenable number.

121773841 is a deficient number, since it is larger than the sum of its proper divisors (17396271).

121773841 is an equidigital number, since it uses as much as digits as its factorization.

121773841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17396270.

The product of its digits is 9408, while the sum is 34.

The square root of 121773841 is about 11035.1185313072. The cubic root of 121773841 is about 495.6609081576.

The spelling of 121773841 in words is "one hundred twenty-one million, seven hundred seventy-three thousand, eight hundred forty-one".