123604126 has 4 divisors (see below), whose sum is σ = 185406192. Its totient is φ = 61802062.

The previous prime is 123604123. The next prime is 123604141. The reversal of 123604126 is 621406321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 621406321 = 17 ⋅36553313.

It is a self number, because there is not a number n which added to its sum of digits gives 123604126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123604121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30901030 + ... + 30901033.

It is an arithmetic number, because the mean of its divisors is an integer number (46351548).

Almost surely, 2^123604126 is an apocalyptic number.

123604126 is a deficient number, since it is larger than the sum of its proper divisors (61802066).

123604126 is an equidigital number, since it uses as much as digits as its factorization.

123604126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61802065.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 123604126 is about 11117.7392486063. The cubic root of 123604126 is about 498.1318634915.

The spelling of 123604126 in words is "one hundred twenty-three million, six hundred four thousand, one hundred twenty-six".