123504161 has 8 divisors (see below), whose sum is σ = 141823200. Its totient is φ = 106367040.

The previous prime is 123504119. The next prime is 123504179. The reversal of 123504161 is 161405321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123504161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123504191) 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, 295256 + ... + 295673.

It is an arithmetic number, because the mean of its divisors is an integer number (17727900).

Almost surely, 2^123504161 is an apocalyptic number.

123504161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123504161 is a deficient number, since it is larger than the sum of its proper divisors (18319039).

123504161 is a wasteful number, since it uses less digits than its factorization.

123504161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590959.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 123504161 is about 11113.2425961103. The cubic root of 123504161 is about 497.9975390060.

Adding to 123504161 its reverse (161405321), we get a palindrome (284909482).

The spelling of 123504161 in words is "one hundred twenty-three million, five hundred four thousand, one hundred sixty-one".