1315445798 has 4 divisors (see below), whose sum is σ = 1973168700. Its totient is φ = 657722898.

The previous prime is 1315445797. The next prime is 1315445861. The reversal of 1315445798 is 8975445131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8975445131 = 19 ⋅472391849.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315445797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328861448 + ... + 328861451.

It is an arithmetic number, because the mean of its divisors is an integer number (493292175).

Almost surely, 2^1315445798 is an apocalyptic number.

1315445798 is a deficient number, since it is larger than the sum of its proper divisors (657722902).

1315445798 is an equidigital number, since it uses as much as digits as its factorization.

1315445798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657722901.

The product of its digits is 604800, while the sum is 47.

The square root of 1315445798 is about 36269.0749537399. The cubic root of 1315445798 is about 1095.6982953760.

The spelling of 1315445798 in words is "one billion, three hundred fifteen million, four hundred forty-five thousand, seven hundred ninety-eight".