1315132725 has 48 divisors (see below), whose sum is σ = 2223821952. Its totient is φ = 685551360.

The previous prime is 1315132723. The next prime is 1315132729. The reversal of 1315132725 is 5272315131.

It is not a de Polignac number, because 1315132725 - 2¹ = 1315132723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1315132692 and 1315132701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315132723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1482232 + ... + 1483118.

It is an arithmetic number, because the mean of its divisors is an integer number (46329624).

Almost surely, 2^1315132725 is an apocalyptic number.

1315132725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315132725 is a deficient number, since it is larger than the sum of its proper divisors (908689227).

1315132725 is a wasteful number, since it uses less digits than its factorization.

1315132725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326 (or 1321 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 1315132725 is about 36264.7587197268. The cubic root of 1315132725 is about 1095.6113639417.

Adding to 1315132725 its reverse (5272315131), we get a palindrome (6587447856).

The spelling of 1315132725 in words is "one billion, three hundred fifteen million, one hundred thirty-two thousand, seven hundred twenty-five".