1325523445 has 8 divisors (see below), whose sum is σ = 1645477560. Its totient is φ = 1023852480.

The previous prime is 1325523443. The next prime is 1325523491. The reversal of 1325523445 is 5443255231.

It can be written as a sum of positive squares in 4 ways, for example, as 278289124 + 1047234321 = 16682^2 + 32361^2 .

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

It is not a de Polignac number, because 1325523445 - 2¹ = 1325523443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1325523445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325523443) 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, 4570626 + ... + 4570915.

It is an arithmetic number, because the mean of its divisors is an integer number (205684695).

Almost surely, 2^1325523445 is an apocalyptic number.

It is an amenable number.

1325523445 is a deficient number, since it is larger than the sum of its proper divisors (319954115).

1325523445 is an equidigital number, since it uses as much as digits as its factorization.

1325523445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141575.

The product of its digits is 72000, while the sum is 34.

The square root of 1325523445 is about 36407.7388064681. The cubic root of 1325523445 is about 1098.4892331885.

Adding to 1325523445 its reverse (5443255231), we get a palindrome (6768778676).

The spelling of 1325523445 in words is "one billion, three hundred twenty-five million, five hundred twenty-three thousand, four hundred forty-five".