1205534125 has 8 divisors (see below), whose sum is σ = 1504506744. Its totient is φ = 964427200.

The previous prime is 1205534123. The next prime is 1205534129. The reversal of 1205534125 is 5214355021.

It can be written as a sum of positive squares in 4 ways, for example, as 173132964 + 1032401161 = 13158^2 + 32131^2 .

It is not a de Polignac number, because 1205534125 - 2¹ = 1205534123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205534093 and 1205534102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205534123) 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, 4822012 + ... + 4822261.

It is an arithmetic number, because the mean of its divisors is an integer number (188063343).

Almost surely, 2^1205534125 is an apocalyptic number.

It is an amenable number.

1205534125 is a deficient number, since it is larger than the sum of its proper divisors (298972619).

1205534125 is an frugal number, since it uses more digits than its factorization.

1205534125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644288 (or 9644278 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1205534125 is about 34720.8024820856. The cubic root of 1205534125 is about 1064.2896436309.

Adding to 1205534125 its reverse (5214355021), we get a palindrome (6419889146).

The spelling of 1205534125 in words is "one billion, two hundred five million, five hundred thirty-four thousand, one hundred twenty-five".