121676449 has 4 divisors (see below), whose sum is σ = 121698864. Its totient is φ = 121654036.

The previous prime is 121676447. The next prime is 121676483. The reversal of 121676449 is 944676121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 944676121 = 41 ⋅23040881.

It is a cyclic number.

It is not a de Polignac number, because 121676449 - 2¹ = 121676447 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121676447) 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, 2634 + ... + 15820.

It is an arithmetic number, because the mean of its divisors is an integer number (30424716).

Almost surely, 2^121676449 is an apocalyptic number.

It is an amenable number.

121676449 is a deficient number, since it is larger than the sum of its proper divisors (22415).

121676449 is an equidigital number, since it uses as much as digits as its factorization.

121676449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22414.

The product of its digits is 72576, while the sum is 40.

The square root of 121676449 is about 11030.7048278884. The cubic root of 121676449 is about 495.5287334041.

The spelling of 121676449 in words is "one hundred twenty-one million, six hundred seventy-six thousand, four hundred forty-nine".