123860129 has 8 divisors (see below), whose sum is σ = 129402240. Its totient is φ = 118331136.

The previous prime is 123860123. The next prime is 123860137. The reversal of 123860129 is 921068321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123860129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123860095 and 123860104.

It is not an unprimeable number, because it can be changed into a prime (123860123) 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, 19457 + ... + 25025.

It is an arithmetic number, because the mean of its divisors is an integer number (16175280).

Almost surely, 2^123860129 is an apocalyptic number.

It is an amenable number.

123860129 is a deficient number, since it is larger than the sum of its proper divisors (5542111).

123860129 is an equidigital number, since it uses as much as digits as its factorization.

123860129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 123860129 is about 11129.2465603023. The cubic root of 123860129 is about 498.4755286984.

The spelling of 123860129 in words is "one hundred twenty-three million, eight hundred sixty thousand, one hundred twenty-nine".