121277297 has 2 divisors, whose sum is σ = 121277298. Its totient is φ = 121277296.

The previous prime is 121277287. The next prime is 121277327. The reversal of 121277297 is 792772121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87590881 + 33686416 = 9359^2 + 5804^2 .

It is an emirp because it is prime and its reverse (792772121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121277297 - 2¹⁰ = 121276273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121277297.

It is not a weakly prime, because it can be changed into another prime (121277227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60638648 + 60638649.

It is an arithmetic number, because the mean of its divisors is an integer number (60638649).

Almost surely, 2^121277297 is an apocalyptic number.

It is an amenable number.

121277297 is a deficient number, since it is larger than the sum of its proper divisors (1).

121277297 is an equidigital number, since it uses as much as digits as its factorization.

121277297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 38.

The square root of 121277297 is about 11012.5971959388. The cubic root of 121277297 is about 494.9862894546.

The spelling of 121277297 in words is "one hundred twenty-one million, two hundred seventy-seven thousand, two hundred ninety-seven".