123604401 has 16 divisors (see below), whose sum is σ = 166707200. Its totient is φ = 81457488.

The previous prime is 123604391. The next prime is 123604417. The reversal of 123604401 is 104406321.

It is not a de Polignac number, because 123604401 - 2¹⁰ = 123603377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123604421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166890 + ... + 167628.

It is an arithmetic number, because the mean of its divisors is an integer number (10419200).

Almost surely, 2^123604401 is an apocalyptic number.

It is an amenable number.

123604401 is a deficient number, since it is larger than the sum of its proper divisors (43102799).

123604401 is a wasteful number, since it uses less digits than its factorization.

123604401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 123604401 is about 11117.7516162217. The cubic root of 123604401 is about 498.1322329133.

It can be divided in two parts, 12360 and 4401, that added together give a palindrome (16761).

The spelling of 123604401 in words is "one hundred twenty-three million, six hundred four thousand, four hundred one".