1310802025 has 27 divisors (see below), whose sum is σ = 1763208111. Its totient is φ = 966239040.

The previous prime is 1310802023. The next prime is 1310802041. The reversal of 1310802025 is 5202080131.

The square root of 1310802025 is 36205.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 1241646169 + 69155856 = 35237^2 + 8316^2 .

It is not a de Polignac number, because 1310802025 - 2¹ = 1310802023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310801987 and 1310802005.

It is not an unprimeable number, because it can be changed into a prime (1310802023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2353047 + ... + 2353603.

Almost surely, 2^1310802025 is an apocalyptic number.

1310802025 is the 36205-th square number.

1310802025 is the 18103-rd centered octagonal number.

It is an amenable number.

1310802025 is a deficient number, since it is larger than the sum of its proper divisors (452406086).

1310802025 is an frugal number, since it uses more digits than its factorization.

1310802025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The cubic root of 1310802025 is about 1094.4074342994.

Adding to 1310802025 its reverse (5202080131), we get a palindrome (6512882156).

The spelling of 1310802025 in words is "one billion, three hundred ten million, eight hundred two thousand, twenty-five".