1361225 has 6 divisors (see below), whose sum is σ = 1687950. Its totient is φ = 1088960.

The previous prime is 1361197. The next prime is 1361273. The reversal of 1361225 is 5221631.

It can be written as a sum of positive squares in 3 ways, for example, as 355216 + 1006009 = 596^2 + 1003^2 .

It is not a de Polignac number, because 1361225 - 2¹⁰ = 1360201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1361197 and 1361206.

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, 27200 + ... + 27249.

It is an arithmetic number, because the mean of its divisors is an integer number (281325).

2^1361225 is an apocalyptic number.

It is an amenable number.

1361225 is a deficient number, since it is larger than the sum of its proper divisors (326725).

1361225 is an equidigital number, since it uses as much as digits as its factorization.

1361225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54459 (or 54454 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 1361225 is about 1166.7154751695. The cubic root of 1361225 is about 110.8264202571.

Adding to 1361225 its reverse (5221631), we get a palindrome (6582856).

The spelling of 1361225 in words is "one million, three hundred sixty-one thousand, two hundred twenty-five".