122135663 has 4 divisors (see below), whose sum is σ = 131530728. Its totient is φ = 112740600.

The previous prime is 122135647. The next prime is 122135719. The reversal of 122135663 is 366531221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122135663 - 2⁴ = 122135647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122137663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4697513 + ... + 4697538.

It is an arithmetic number, because the mean of its divisors is an integer number (32882682).

Almost surely, 2^122135663 is an apocalyptic number.

122135663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122135663 is a deficient number, since it is larger than the sum of its proper divisors (9395065).

122135663 is an equidigital number, since it uses as much as digits as its factorization.

122135663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9395064.

The product of its digits is 6480, while the sum is 29.

The square root of 122135663 is about 11051.5004863593. The cubic root of 122135663 is about 496.1513355739.

Adding to 122135663 its reverse (366531221), we get a palindrome (488666884).

The spelling of 122135663 in words is "one hundred twenty-two million, one hundred thirty-five thousand, six hundred sixty-three".