1313442045 has 24 divisors (see below), whose sum is σ = 2355139800. Its totient is φ = 676346496.

The previous prime is 1313442037. The next prime is 1313442107. The reversal of 1313442045 is 5402443131.

It is a happy number.

1313442045 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 78481881 + 1234960164 = 8859^2 + 35142^2 .

It is not a de Polignac number, because 1313442045 - 2³ = 1313442037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501930 + ... + 504539.

It is an arithmetic number, because the mean of its divisors is an integer number (98130825).

Almost surely, 2^1313442045 is an apocalyptic number.

1313442045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313442045 is a deficient number, since it is larger than the sum of its proper divisors (1041697755).

1313442045 is a wasteful number, since it uses less digits than its factorization.

1313442045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006509 (or 1006506 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1313442045 is about 36241.4409895633. The cubic root of 1313442045 is about 1095.1416717928.

Adding to 1313442045 its reverse (5402443131), we get a palindrome (6715885176).

The spelling of 1313442045 in words is "one billion, three hundred thirteen million, four hundred forty-two thousand, forty-five".