1325133545 has 4 divisors (see below), whose sum is σ = 1590160260. Its totient is φ = 1060106832.

The previous prime is 1325133529. The next prime is 1325133559. The reversal of 1325133545 is 5453315231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 713263849 + 611869696 = 26707^2 + 24736^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325133545 - 2⁴ = 1325133529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132513350 + ... + 132513359.

It is an arithmetic number, because the mean of its divisors is an integer number (397540065).

Almost surely, 2^1325133545 is an apocalyptic number.

It is an amenable number.

1325133545 is a deficient number, since it is larger than the sum of its proper divisors (265026715).

1325133545 is an equidigital number, since it uses as much as digits as its factorization.

1325133545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265026714.

The product of its digits is 27000, while the sum is 32.

The square root of 1325133545 is about 36402.3837818349. The cubic root of 1325133545 is about 1098.3815165087.

Adding to 1325133545 its reverse (5453315231), we get a palindrome (6778448776).

The spelling of 1325133545 in words is "one billion, three hundred twenty-five million, one hundred thirty-three thousand, five hundred forty-five".