122431005 has 48 divisors (see below), whose sum is σ = 219158784. Its totient is φ = 63192960.

The previous prime is 122430989. The next prime is 122431031. The reversal of 122431005 is 500134221.

It is not a de Polignac number, because 122431005 - 2⁴ = 122430989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 226035 + ... + 226575.

It is an arithmetic number, because the mean of its divisors is an integer number (4565808).

Almost surely, 2^122431005 is an apocalyptic number.

122431005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122431005 is a deficient number, since it is larger than the sum of its proper divisors (96727779).

122431005 is a wasteful number, since it uses less digits than its factorization.

122431005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 122431005 is about 11064.8544952024. The cubic root of 122431005 is about 496.5509359547.

Adding to 122431005 its reverse (500134221), we get a palindrome (622565226).

The spelling of 122431005 in words is "one hundred twenty-two million, four hundred thirty-one thousand, five".