182125121 has 4 divisors (see below), whose sum is σ = 183049812. Its totient is φ = 181200432.

The previous prime is 182125117. The next prime is 182125123. The reversal of 182125121 is 121521281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151167025 + 30958096 = 12295^2 + 5564^2 .

It is a cyclic number.

It is not a de Polignac number, because 182125121 - 2² = 182125117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (182125123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462050 + ... + 462443.

It is an arithmetic number, because the mean of its divisors is an integer number (45762453).

Almost surely, 2^182125121 is an apocalyptic number.

It is an amenable number.

182125121 is a deficient number, since it is larger than the sum of its proper divisors (924691).

182125121 is an equidigital number, since it uses as much as digits as its factorization.

182125121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924690.

The product of its digits is 320, while the sum is 23.

The square root of 182125121 is about 13495.3740592842. The cubic root of 182125121 is about 566.8349468307.

The spelling of 182125121 in words is "one hundred eighty-two million, one hundred twenty-five thousand, one hundred twenty-one".