180725123 has 4 divisors (see below), whose sum is σ = 180826728. Its totient is φ = 180623520.

The previous prime is 180725117. The next prime is 180725141. The reversal of 180725123 is 321527081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321527081 = 137 ⋅2346913.

It is a cyclic number.

It is not a de Polignac number, because 180725123 - 2¹⁸ = 180462979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180725143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48086 + ... + 51707.

It is an arithmetic number, because the mean of its divisors is an integer number (45206682).

Almost surely, 2^180725123 is an apocalyptic number.

180725123 is a deficient number, since it is larger than the sum of its proper divisors (101605).

180725123 is an equidigital number, since it uses as much as digits as its factorization.

180725123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101604.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 180725123 is about 13443.4044423278. The cubic root of 180725123 is about 565.3787869036.

The spelling of 180725123 in words is "one hundred eighty million, seven hundred twenty-five thousand, one hundred twenty-three".