122549477 has 2 divisors, whose sum is σ = 122549478. Its totient is φ = 122549476.

The previous prime is 122549473. The next prime is 122549491. The reversal of 122549477 is 774945221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65788321 + 56761156 = 8111^2 + 7534^2 .

It is a cyclic number.

It is not a de Polignac number, because 122549477 - 2² = 122549473 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122549473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61274738 + 61274739.

It is an arithmetic number, because the mean of its divisors is an integer number (61274739).

Almost surely, 2^122549477 is an apocalyptic number.

It is an amenable number.

122549477 is a deficient number, since it is larger than the sum of its proper divisors (1).

122549477 is an equidigital number, since it uses as much as digits as its factorization.

122549477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 41.

The square root of 122549477 is about 11070.2067279703. The cubic root of 122549477 is about 496.7110490395.

The spelling of 122549477 in words is "one hundred twenty-two million, five hundred forty-nine thousand, four hundred seventy-seven".