122705563 has 2 divisors, whose sum is σ = 122705564. Its totient is φ = 122705562.

The previous prime is 122705549. The next prime is 122705581. The reversal of 122705563 is 365507221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122705563 - 2¹³ = 122697371 is a prime.

It is a super-2 number, since 2×122705563² = 30113310382293938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122705503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61352781 + 61352782.

It is an arithmetic number, because the mean of its divisors is an integer number (61352782).

Almost surely, 2^122705563 is an apocalyptic number.

122705563 is a deficient number, since it is larger than the sum of its proper divisors (1).

122705563 is an equidigital number, since it uses as much as digits as its factorization.

122705563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 122705563 is about 11077.2543078147. The cubic root of 122705563 is about 496.9218394091.

The spelling of 122705563 in words is "one hundred twenty-two million, seven hundred five thousand, five hundred sixty-three".