122431666 has 8 divisors (see below), whose sum is σ = 209882880. Its totient is φ = 52470708.

The previous prime is 122431657. The next prime is 122431711. The reversal of 122431666 is 666134221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4372546 + ... + 4372573.

It is an arithmetic number, because the mean of its divisors is an integer number (26235360).

Almost surely, 2^122431666 is an apocalyptic number.

122431666 is a deficient number, since it is larger than the sum of its proper divisors (87451214).

122431666 is an equidigital number, since it uses as much as digits as its factorization.

122431666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8745128.

The product of its digits is 10368, while the sum is 31.

The square root of 122431666 is about 11064.8843645110. The cubic root of 122431666 is about 496.5518295725.

Adding to 122431666 its reverse (666134221), we get a palindrome (788565887).

The spelling of 122431666 in words is "one hundred twenty-two million, four hundred thirty-one thousand, six hundred sixty-six".