1200013225 has 6 divisors (see below), whose sum is σ = 1488016430. Its totient is φ = 960010560.

The previous prime is 1200013223. The next prime is 1200013261. The reversal of 1200013225 is 5223100021.

It can be written as a sum of positive squares in 3 ways, for example, as 270799936 + 929213289 = 16456^2 + 30483^2 .

It is not a de Polignac number, because 1200013225 - 2¹ = 1200013223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200013199 and 1200013208.

It is not an unprimeable number, because it can be changed into a prime (1200013223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24000240 + ... + 24000289.

Almost surely, 2^1200013225 is an apocalyptic number.

It is an amenable number.

1200013225 is a deficient number, since it is larger than the sum of its proper divisors (288003205).

1200013225 is an equidigital number, since it uses as much as digits as its factorization.

1200013225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48000539 (or 48000534 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1200013225 is about 34641.2070372844. The cubic root of 1200013225 is about 1062.6624729626.

Adding to 1200013225 its reverse (5223100021), we get a palindrome (6423113246).

The spelling of 1200013225 in words is "one billion, two hundred million, thirteen thousand, two hundred twenty-five".