123404275 has 24 divisors (see below), whose sum is σ = 162739584. Its totient is φ = 92505600.

The previous prime is 123404263. The next prime is 123404279. The reversal of 123404275 is 572404321.

It is not a de Polignac number, because 123404275 - 2⁷ = 123404147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123404279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124030 + ... + 125020.

It is an arithmetic number, because the mean of its divisors is an integer number (6780816).

Almost surely, 2^123404275 is an apocalyptic number.

123404275 is a deficient number, since it is larger than the sum of its proper divisors (39335309).

123404275 is a wasteful number, since it uses less digits than its factorization.

123404275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1306 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 123404275 is about 11108.7476791941. The cubic root of 123404275 is about 497.8632482584.

Adding to 123404275 its reverse (572404321), we get a palindrome (695808596).

The spelling of 123404275 in words is "one hundred twenty-three million, four hundred four thousand, two hundred seventy-five".