122563811 has 2 divisors, whose sum is σ = 122563812. Its totient is φ = 122563810.

The previous prime is 122563807. The next prime is 122563871. The reversal of 122563811 is 118365221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122563811 - 2² = 122563807 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122563871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61281905 + 61281906.

It is an arithmetic number, because the mean of its divisors is an integer number (61281906).

Almost surely, 2^122563811 is an apocalyptic number.

122563811 is a deficient number, since it is larger than the sum of its proper divisors (1).

122563811 is an equidigital number, since it uses as much as digits as its factorization.

122563811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 122563811 is about 11070.8541224243. The cubic root of 122563811 is about 496.7304142210.

The spelling of 122563811 in words is "one hundred twenty-two million, five hundred sixty-three thousand, eight hundred eleven".