1320502445 has 4 divisors (see below), whose sum is σ = 1584602940. Its totient is φ = 1056401952.

The previous prime is 1320502411. The next prime is 1320502471. The reversal of 1320502445 is 5442050231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5442050231 = 373 ⋅14589947.

It can be written as a sum of positive squares in 2 ways, for example, as 821739556 + 498762889 = 28666^2 + 22333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320502445 - 2¹⁴ = 1320486061 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, 132050240 + ... + 132050249.

It is an arithmetic number, because the mean of its divisors is an integer number (396150735).

Almost surely, 2^1320502445 is an apocalyptic number.

It is an amenable number.

1320502445 is a deficient number, since it is larger than the sum of its proper divisors (264100495).

1320502445 is an equidigital number, since it uses as much as digits as its factorization.

1320502445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264100494.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1320502445 is about 36338.7182630318. The cubic root of 1320502445 is about 1097.1004753373.

Adding to 1320502445 its reverse (5442050231), we get a palindrome (6762552676).

The spelling of 1320502445 in words is "one billion, three hundred twenty million, five hundred two thousand, four hundred forty-five".