121748807 has 2 divisors, whose sum is σ = 121748808. Its totient is φ = 121748806.

The previous prime is 121748761. The next prime is 121748909. The reversal of 121748807 is 708847121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121748807 - 2⁸ = 121748551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121748507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60874403 + 60874404.

It is an arithmetic number, because the mean of its divisors is an integer number (60874404).

Almost surely, 2^121748807 is an apocalyptic number.

121748807 is a deficient number, since it is larger than the sum of its proper divisors (1).

121748807 is an equidigital number, since it uses as much as digits as its factorization.

121748807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 121748807 is about 11033.9841852343. The cubic root of 121748807 is about 495.6269402012.

The spelling of 121748807 in words is "one hundred twenty-one million, seven hundred forty-eight thousand, eight hundred seven".