1303571025 has 81 divisors (see below), whose sum is σ = 2447613649. Its totient is φ = 663176640.

The previous prime is 1303570997. The next prime is 1303571099. The reversal of 1303571025 is 5201753031.

The square root of 1303571025 is 36105.

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

It can be written as a sum of positive squares in 4 ways, for example, as 17918289 + 1285652736 = 4233^2 + 35856^2 .

It is not a de Polignac number, because 1303571025 - 2¹¹ = 1303568977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303571025.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 15705634 + ... + 15705716.

Almost surely, 2^1303571025 is an apocalyptic number.

1303571025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1303571025 is the 36105-th square number.

1303571025 is the 18053-rd centered octagonal number.

It is an amenable number.

1303571025 is a deficient number, since it is larger than the sum of its proper divisors (1144042624).

1303571025 is an equidigital number, since it uses as much as digits as its factorization.

1303571025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The cubic root of 1303571025 is about 1092.3913005149.

The spelling of 1303571025 in words is "one billion, three hundred three million, five hundred seventy-one thousand, twenty-five".