121752299 has 2 divisors, whose sum is σ = 121752300. Its totient is φ = 121752298.

The previous prime is 121752287. The next prime is 121752343. The reversal of 121752299 is 992257121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121752299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121752269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60876149 + 60876150.

It is an arithmetic number, because the mean of its divisors is an integer number (60876150).

Almost surely, 2^121752299 is an apocalyptic number.

121752299 is a deficient number, since it is larger than the sum of its proper divisors (1).

121752299 is an equidigital number, since it uses as much as digits as its factorization.

121752299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 121752299 is about 11034.1424224994. The cubic root of 121752299 is about 495.6316786808.

The spelling of 121752299 in words is "one hundred twenty-one million, seven hundred fifty-two thousand, two hundred ninety-nine".