123133134 has 32 divisors (see below), whose sum is σ = 249857280. Its totient is φ = 40450752.

The previous prime is 123133121. The next prime is 123133141. The reversal of 123133134 is 431331321.

It is a self number, because there is not a number n which added to its sum of digits gives 123133134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133527 + ... + 134445.

It is an arithmetic number, because the mean of its divisors is an integer number (7808040).

Almost surely, 2^123133134 is an apocalyptic number.

123133134 is an abundant number, since it is smaller than the sum of its proper divisors (126724146).

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

123133134 is a wasteful number, since it uses less digits than its factorization.

123133134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224.

The product of its digits is 648, while the sum is 21.

The square root of 123133134 is about 11096.5370273793. The cubic root of 123133134 is about 497.4983496995.

Adding to 123133134 its reverse (431331321), we get a palindrome (554464455).

The spelling of 123133134 in words is "one hundred twenty-three million, one hundred thirty-three thousand, one hundred thirty-four".