121027769 has 2 divisors, whose sum is σ = 121027770. Its totient is φ = 121027768.

The previous prime is 121027741. The next prime is 121027789. The reversal of 121027769 is 967720121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120714169 + 313600 = 10987^2 + 560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121027769 is a prime.

It is a super-2 number, since 2×121027769² = 29295441738234722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121027729) 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 as a sum of consecutive naturals, namely, 60513884 + 60513885.

It is an arithmetic number, because the mean of its divisors is an integer number (60513885).

Almost surely, 2^121027769 is an apocalyptic number.

It is an amenable number.

121027769 is a deficient number, since it is larger than the sum of its proper divisors (1).

121027769 is an equidigital number, since it uses as much as digits as its factorization.

121027769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 121027769 is about 11001.2621548621. The cubic root of 121027769 is about 494.6465783184.

The spelling of 121027769 in words is "one hundred twenty-one million, twenty-seven thousand, seven hundred sixty-nine".