1325270645 has 8 divisors (see below), whose sum is σ = 1593869400. Its totient is φ = 1057853440.

The previous prime is 1325270641. The next prime is 1325270651. The reversal of 1325270645 is 5460725231.

It can be written as a sum of positive squares in 4 ways, for example, as 124925329 + 1200345316 = 11177^2 + 34646^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1325270645 - 2² = 1325270641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325270641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292916 + ... + 297405.

It is an arithmetic number, because the mean of its divisors is an integer number (199233675).

Almost surely, 2^1325270645 is an apocalyptic number.

It is an amenable number.

1325270645 is a deficient number, since it is larger than the sum of its proper divisors (268598755).

1325270645 is an equidigital number, since it uses as much as digits as its factorization.

1325270645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590775.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 1325270645 is about 36404.2668515656. The cubic root of 1325270645 is about 1098.4193951847.

Adding to 1325270645 its reverse (5460725231), we get a palindrome (6785995876).

The spelling of 1325270645 in words is "one billion, three hundred twenty-five million, two hundred seventy thousand, six hundred forty-five".