123204134 has 16 divisors (see below), whose sum is σ = 198158400. Its totient is φ = 57243264.

The previous prime is 123204131. The next prime is 123204161. The reversal of 123204134 is 431402321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123204131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20249 + ... + 25620.

It is an arithmetic number, because the mean of its divisors is an integer number (12384900).

Almost surely, 2^123204134 is an apocalyptic number.

123204134 is a deficient number, since it is larger than the sum of its proper divisors (74954266).

123204134 is a wasteful number, since it uses less digits than its factorization.

123204134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45967.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123204134 is about 11099.7357626207. The cubic root of 123204134 is about 497.5939524420.

Adding to 123204134 its reverse (431402321), we get a palindrome (554606455).

The spelling of 123204134 in words is "one hundred twenty-three million, two hundred four thousand, one hundred thirty-four".