121308937 has 2 divisors, whose sum is σ = 121308938. Its totient is φ = 121308936.

The previous prime is 121308911. The next prime is 121308949. The reversal of 121308937 is 739803121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62157456 + 59151481 = 7884^2 + 7691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121308937 is a prime.

It is not a weakly prime, because it can be changed into another prime (121308037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60654468 + 60654469.

It is an arithmetic number, because the mean of its divisors is an integer number (60654469).

Almost surely, 2^121308937 is an apocalyptic number.

It is an amenable number.

121308937 is a deficient number, since it is larger than the sum of its proper divisors (1).

121308937 is an equidigital number, since it uses as much as digits as its factorization.

121308937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 121308937 is about 11014.0336389535. The cubic root of 121308937 is about 495.0293313232.

The spelling of 121308937 in words is "one hundred twenty-one million, three hundred eight thousand, nine hundred thirty-seven".