1325131535 has 64 divisors (see below), whose sum is σ = 2074598400. Its totient is φ = 793742976.

The previous prime is 1325131531. The next prime is 1325131537. The reversal of 1325131535 is 5351315231.

It is a happy number.

It is not a de Polignac number, because 1325131535 - 2² = 1325131531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1325131498 and 1325131507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325131531) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1460552 + ... + 1461458.

It is an arithmetic number, because the mean of its divisors is an integer number (32415600).

Almost surely, 2^1325131535 is an apocalyptic number.

1325131535 is a deficient number, since it is larger than the sum of its proper divisors (749466865).

1325131535 is an equidigital number, since it uses as much as digits as its factorization.

1325131535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977 (or 951 counting only the distinct ones).

The product of its digits is 6750, while the sum is 29.

The square root of 1325131535 is about 36402.3561737424. The cubic root of 1325131535 is about 1098.3809611564.

Adding to 1325131535 its reverse (5351315231), we get a palindrome (6676446766).

The spelling of 1325131535 in words is "one billion, three hundred twenty-five million, one hundred thirty-one thousand, five hundred thirty-five".