1313485045 has 4 divisors (see below), whose sum is σ = 1576182060. Its totient is φ = 1050788032.

The previous prime is 1313485021. The next prime is 1313485049. The reversal of 1313485045 is 5405843131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 742944049 + 570540996 = 27257^2 + 23886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313485045 - 2⁹ = 1313484533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1313485045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313485049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131348500 + ... + 131348509.

It is an arithmetic number, because the mean of its divisors is an integer number (394045515).

Almost surely, 2^1313485045 is an apocalyptic number.

It is an amenable number.

1313485045 is a deficient number, since it is larger than the sum of its proper divisors (262697015).

1313485045 is an equidigital number, since it uses as much as digits as its factorization.

1313485045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262697014.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1313485045 is about 36242.0342282273. The cubic root of 1313485045 is about 1095.1536227270.

The spelling of 1313485045 in words is "one billion, three hundred thirteen million, four hundred eighty-five thousand, forty-five".