1200520325 has 6 divisors (see below), whose sum is σ = 1488645234. Its totient is φ = 960416240.

The previous prime is 1200520319. The next prime is 1200520357. The reversal of 1200520325 is 5230250021.

It can be written as a sum of positive squares in 3 ways, for example, as 114554209 + 1085966116 = 10703^2 + 32954^2 .

It is not a de Polignac number, because 1200520325 - 2³⁰ = 126778501 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 = 1200520297 and 1200520306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24010382 + ... + 24010431.

It is an arithmetic number, because the mean of its divisors is an integer number (248107539).

Almost surely, 2^1200520325 is an apocalyptic number.

It is an amenable number.

1200520325 is a deficient number, since it is larger than the sum of its proper divisors (288124909).

1200520325 is an equidigital number, since it uses as much as digits as its factorization.

1200520325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48020823 (or 48020818 counting only the distinct ones).

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

The square root of 1200520325 is about 34648.5255819061. The cubic root of 1200520325 is about 1062.8121380498.

Adding to 1200520325 its reverse (5230250021), we get a palindrome (6430770346).

The spelling of 1200520325 in words is "one billion, two hundred million, five hundred twenty thousand, three hundred twenty-five".