122431655 has 8 divisors (see below), whose sum is σ = 147314112. Its totient is φ = 97681248.

The previous prime is 122431651. The next prime is 122431657. The reversal of 122431655 is 556134221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122431655 - 2² = 122431651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122431651) 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 in 7 ways as a sum of consecutive naturals, for example, 30959 + ... + 34688.

It is an arithmetic number, because the mean of its divisors is an integer number (18414264).

Almost surely, 2^122431655 is an apocalyptic number.

122431655 is a deficient number, since it is larger than the sum of its proper divisors (24882457).

122431655 is an equidigital number, since it uses as much as digits as its factorization.

122431655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66025.

The product of its digits is 7200, while the sum is 29.

The square root of 122431655 is about 11064.8838674430. The cubic root of 122431655 is about 496.5518147014.

Adding to 122431655 its reverse (556134221), we get a palindrome (678565876).

The spelling of 122431655 in words is "one hundred twenty-two million, four hundred thirty-one thousand, six hundred fifty-five".