123126664 has 16 divisors (see below), whose sum is σ = 231091200. Its totient is φ = 61502352.

The previous prime is 123126643. The next prime is 123126697. The reversal of 123126664 is 466621321.

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 3 ways as a sum of consecutive naturals, for example, 1617 + ... + 15775.

It is an arithmetic number, because the mean of its divisors is an integer number (14443200).

Almost surely, 2^123126664 is an apocalyptic number.

It is an amenable number.

123126664 is a deficient number, since it is larger than the sum of its proper divisors (107964536).

123126664 is a wasteful number, since it uses less digits than its factorization.

123126664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15252 (or 15248 counting only the distinct ones).

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

The square root of 123126664 is about 11096.2454911560. The cubic root of 123126664 is about 497.4896359044.

Adding to 123126664 its reverse (466621321), we get a palindrome (589747985).

The spelling of 123126664 in words is "one hundred twenty-three million, one hundred twenty-six thousand, six hundred sixty-four".