1232500205 has 4 divisors (see below), whose sum is σ = 1479000252. Its totient is φ = 986000160.

The previous prime is 1232500193. The next prime is 1232500207. The reversal of 1232500205 is 5020052321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5020052321 = 163 ⋅30797867.

It can be written as a sum of positive squares in 2 ways, for example, as 803098921 + 429401284 = 28339^2 + 20722^2 .

It is not a de Polignac number, because 1232500205 - 2¹⁰ = 1232499181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232500207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123250016 + ... + 123250025.

It is an arithmetic number, because the mean of its divisors is an integer number (369750063).

Almost surely, 2^1232500205 is an apocalyptic number.

It is an amenable number.

1232500205 is a deficient number, since it is larger than the sum of its proper divisors (246500047).

1232500205 is an equidigital number, since it uses as much as digits as its factorization.

1232500205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246500046.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1232500205 is about 35106.9822827312. The cubic root of 1232500205 is about 1072.1667466006.

Adding to 1232500205 its reverse (5020052321), we get a palindrome (6252552526).

The spelling of 1232500205 in words is "one billion, two hundred thirty-two million, five hundred thousand, two hundred five".