1353120325 has 6 divisors (see below), whose sum is σ = 1677869234. Its totient is φ = 1082496240.

The previous prime is 1353120323. The next prime is 1353120371. The reversal of 1353120325 is 5230213531.

It can be written as a sum of positive squares in 3 ways, for example, as 110628324 + 1242492001 = 10518^2 + 35249^2 .

It is not a de Polignac number, because 1353120325 - 2¹ = 1353120323 is a prime.

It is a super-2 number, since 2×1353120325² = 3661869227856211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 54124813 = 1353120325 / (1 + 3 + 5 + 3 + 1 + 2 + 0 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1353120325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353120323) 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, 27062382 + ... + 27062431.

Almost surely, 2^1353120325 is an apocalyptic number.

It is an amenable number.

1353120325 is a deficient number, since it is larger than the sum of its proper divisors (324748909).

1353120325 is an equidigital number, since it uses as much as digits as its factorization.

1353120325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54124823 (or 54124818 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1353120325 is about 36784.7838786637. The cubic root of 1353120325 is about 1106.0603036900.

Adding to 1353120325 its reverse (5230213531), we get a palindrome (6583333856).

It can be divided in two parts, 13531 and 20325, that added together give a square (33856 = 184²).

The spelling of 1353120325 in words is "one billion, three hundred fifty-three million, one hundred twenty thousand, three hundred twenty-five".