1303513125 has 20 divisors (see below), whose sum is σ = 2171829792. Its totient is φ = 695206000.

The previous prime is 1303513117. The next prime is 1303513129. The reversal of 1303513125 is 5213153031.

It is not a de Polignac number, because 1303513125 - 2³ = 1303513117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1303513095 and 1303513104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303513129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 345729 + ... + 349478.

Almost surely, 2^1303513125 is an apocalyptic number.

1303513125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1303513125 is a deficient number, since it is larger than the sum of its proper divisors (868316667).

1303513125 is an frugal number, since it uses more digits than its factorization.

1303513125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695230 (or 695215 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1303513125 is about 36104.1981630946. The cubic root of 1303513125 is about 1092.3751268935.

Adding to 1303513125 its reverse (5213153031), we get a palindrome (6516666156).

The spelling of 1303513125 in words is "one billion, three hundred three million, five hundred thirteen thousand, one hundred twenty-five".