1318535045 has 12 divisors (see below), whose sum is σ = 1680791844. Its totient is φ = 992778240.

The previous prime is 1318535041. The next prime is 1318535047. The reversal of 1318535045 is 5405358131.

It can be written as a sum of positive squares in 6 ways, for example, as 1643524 + 1316891521 = 1282^2 + 36289^2 .

It is not a de Polignac number, because 1318535045 - 2² = 1318535041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1318534996 and 1318535014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318535041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454796 + ... + 457685.

It is an arithmetic number, because the mean of its divisors is an integer number (140065987).

Almost surely, 2^1318535045 is an apocalyptic number.

It is an amenable number.

1318535045 is a deficient number, since it is larger than the sum of its proper divisors (362256799).

1318535045 is an equidigital number, since it uses as much as digits as its factorization.

1318535045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912520 (or 912503 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1318535045 is about 36311.6378727261. The cubic root of 1318535045 is about 1096.5553524528. Note that the first 3 decimals are identical.

The spelling of 1318535045 in words is "one billion, three hundred eighteen million, five hundred thirty-five thousand, forty-five".