121633849 has 4 divisors (see below), whose sum is σ = 121847440. Its totient is φ = 121420260.

The previous prime is 121633843. The next prime is 121633871. The reversal of 121633849 is 948336121.

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 121633849 - 2¹¹ = 121631801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121633843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105939 + ... + 107080.

It is an arithmetic number, because the mean of its divisors is an integer number (30461860).

Almost surely, 2^121633849 is an apocalyptic number.

It is an amenable number.

121633849 is a deficient number, since it is larger than the sum of its proper divisors (213591).

121633849 is an equidigital number, since it uses as much as digits as its factorization.

121633849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213590.

The product of its digits is 31104, while the sum is 37.

The square root of 121633849 is about 11028.7736852290. The cubic root of 121633849 is about 495.4708969912.

The spelling of 121633849 in words is "one hundred twenty-one million, six hundred thirty-three thousand, eight hundred forty-nine".