122998829 has 2 divisors, whose sum is σ = 122998830. Its totient is φ = 122998828.

The previous prime is 122998823. The next prime is 122998847. The reversal of 122998829 is 928899221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120406729 + 2592100 = 10973^2 + 1610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122998829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122998823) 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, 61499414 + 61499415.

It is an arithmetic number, because the mean of its divisors is an integer number (61499415).

Almost surely, 2^122998829 is an apocalyptic number.

It is an amenable number.

122998829 is a deficient number, since it is larger than the sum of its proper divisors (1).

122998829 is an equidigital number, since it uses as much as digits as its factorization.

122998829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 122998829 is about 11090.4837135267. The cubic root of 122998829 is about 497.3174051090.

The spelling of 122998829 in words is "one hundred twenty-two million, nine hundred ninety-eight thousand, eight hundred twenty-nine".