121627939 has 4 divisors (see below), whose sum is σ = 121650256. Its totient is φ = 121605624.

The previous prime is 121627931. The next prime is 121627999. The reversal of 121627939 is 939726121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121627939 - 2³ = 121627931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121627931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037 + ... + 15889.

It is an arithmetic number, because the mean of its divisors is an integer number (30412564).

Almost surely, 2^121627939 is an apocalyptic number.

121627939 is a deficient number, since it is larger than the sum of its proper divisors (22317).

121627939 is an equidigital number, since it uses as much as digits as its factorization.

121627939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22316.

The product of its digits is 40824, while the sum is 40.

The square root of 121627939 is about 11028.5057464735. The cubic root of 121627939 is about 495.4628721405.

The spelling of 121627939 in words is "one hundred twenty-one million, six hundred twenty-seven thousand, nine hundred thirty-nine".