121771627 has 16 divisors (see below), whose sum is σ = 134041600. Its totient is φ = 110185920.

The previous prime is 121771619. The next prime is 121771649. The reversal of 121771627 is 726177121.

It is a cyclic number.

It is not a de Polignac number, because 121771627 - 2³ = 121771619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121771592 and 121771601.

It is not an unprimeable number, because it can be changed into a prime (121771127) 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 15 ways as a sum of consecutive naturals, for example, 45223 + ... + 47839.

It is an arithmetic number, because the mean of its divisors is an integer number (8377600).

Almost surely, 2^121771627 is an apocalyptic number.

121771627 is a deficient number, since it is larger than the sum of its proper divisors (12269973).

121771627 is a wasteful number, since it uses less digits than its factorization.

121771627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746.

The product of its digits is 8232, while the sum is 34.

The square root of 121771627 is about 11035.0182147561. The cubic root of 121771627 is about 495.6579042286.

The spelling of 121771627 in words is "one hundred twenty-one million, seven hundred seventy-one thousand, six hundred twenty-seven".