1324511245 has 4 divisors (see below), whose sum is σ = 1589413500. Its totient is φ = 1059608992.

The previous prime is 1324511219. The next prime is 1324511267. The reversal of 1324511245 is 5421154231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5421154231 = 6803 ⋅796877.

It can be written as a sum of positive squares in 2 ways, for example, as 365803876 + 958707369 = 19126^2 + 30963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324511245 - 2¹⁷ = 1324380173 is a prime.

It is a congruent number.

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, 132451120 + ... + 132451129.

It is an arithmetic number, because the mean of its divisors is an integer number (397353375).

Almost surely, 2^1324511245 is an apocalyptic number.

It is an amenable number.

1324511245 is a deficient number, since it is larger than the sum of its proper divisors (264902255).

1324511245 is an equidigital number, since it uses as much as digits as its factorization.

1324511245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264902254.

The product of its digits is 4800, while the sum is 28.

The square root of 1324511245 is about 36393.8352609340. The cubic root of 1324511245 is about 1098.2095514904.

Adding to 1324511245 its reverse (5421154231), we get a palindrome (6745665476).

The spelling of 1324511245 in words is "one billion, three hundred twenty-four million, five hundred eleven thousand, two hundred forty-five".