121860769 has 2 divisors, whose sum is σ = 121860770. Its totient is φ = 121860768.

The previous prime is 121860763. The next prime is 121860773. The reversal of 121860769 is 967068121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107910544 + 13950225 = 10388^2 + 3735^2 .

It is a cyclic number.

It is not a de Polignac number, because 121860769 - 2⁹ = 121860257 is a prime.

It is a super-2 number, since 2×121860769² = 29700094042542722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121860763) 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 as a sum of consecutive naturals, namely, 60930384 + 60930385.

It is an arithmetic number, because the mean of its divisors is an integer number (60930385).

Almost surely, 2^121860769 is an apocalyptic number.

It is an amenable number.

121860769 is a deficient number, since it is larger than the sum of its proper divisors (1).

121860769 is an equidigital number, since it uses as much as digits as its factorization.

121860769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 121860769 is about 11039.0565267146. The cubic root of 121860769 is about 495.7788222697.

The spelling of 121860769 in words is "one hundred twenty-one million, eight hundred sixty thousand, seven hundred sixty-nine".