122828449 has 2 divisors, whose sum is σ = 122828450. Its totient is φ = 122828448.

The previous prime is 122828411. The next prime is 122828467. The reversal of 122828449 is 944828221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76247824 + 46580625 = 8732^2 + 6825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122828449 is a prime.

It is equal to p_6993463 and since 122828449 and 6993463 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (122828149) 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, 61414224 + 61414225.

It is an arithmetic number, because the mean of its divisors is an integer number (61414225).

Almost surely, 2^122828449 is an apocalyptic number.

It is an amenable number.

122828449 is a deficient number, since it is larger than the sum of its proper divisors (1).

122828449 is an equidigital number, since it uses as much as digits as its factorization.

122828449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 40.

The square root of 122828449 is about 11082.7996914137. The cubic root of 122828449 is about 497.0876682495.

The spelling of 122828449 in words is "one hundred twenty-two million, eight hundred twenty-eight thousand, four hundred forty-nine".