123228747 has 6 divisors (see below), whose sum is σ = 177997092. Its totient is φ = 82152492.

The previous prime is 123228731. The next prime is 123228761. The reversal of 123228747 is 747822321.

It is not a de Polignac number, because 123228747 - 2⁴ = 123228731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123228727) 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 5 ways as a sum of consecutive naturals, for example, 6846033 + ... + 6846050.

It is an arithmetic number, because the mean of its divisors is an integer number (29666182).

Almost surely, 2^123228747 is an apocalyptic number.

123228747 is a deficient number, since it is larger than the sum of its proper divisors (54768345).

123228747 is a wasteful number, since it uses less digits than its factorization.

123228747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13692089 (or 13692086 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 123228747 is about 11100.8444273398. The cubic root of 123228747 is about 497.6270857038.

The spelling of 123228747 in words is "one hundred twenty-three million, two hundred twenty-eight thousand, seven hundred forty-seven".