1305023025 has 12 divisors (see below), whose sum is σ = 2157638192. Its totient is φ = 696012240.

The previous prime is 1305023017. The next prime is 1305023047. The reversal of 1305023025 is 5203205031.

It is not a de Polignac number, because 1305023025 - 2³ = 1305023017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305022992 and 1305023010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8700079 + ... + 8700228.

Almost surely, 2^1305023025 is an apocalyptic number.

1305023025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1305023025 is a deficient number, since it is larger than the sum of its proper divisors (852615167).

1305023025 is a wasteful number, since it uses less digits than its factorization.

1305023025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400320 (or 17400315 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1305023025 is about 36125.1024220001. The cubic root of 1305023025 is about 1092.7967415645.

Adding to 1305023025 its reverse (5203205031), we get a palindrome (6508228056).

The spelling of 1305023025 in words is "one billion, three hundred five million, twenty-three thousand, twenty-five".