123648306 has 32 divisors (see below), whose sum is σ = 257368320. Its totient is φ = 39570384.

The previous prime is 123648277. The next prime is 123648319. The reversal of 123648306 is 603846321.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11161 + ... + 19283.

It is an arithmetic number, because the mean of its divisors is an integer number (8042760).

Almost surely, 2^123648306 is an apocalyptic number.

123648306 is an abundant number, since it is smaller than the sum of its proper divisors (133720014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123648306 is a wasteful number, since it uses less digits than its factorization.

123648306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 123648306 is about 11119.7259858326. The cubic root of 123648306 is about 498.1912057506.

The spelling of 123648306 in words is "one hundred twenty-three million, six hundred forty-eight thousand, three hundred six".