1318703053 has 4 divisors (see below), whose sum is σ = 1326325788. Its totient is φ = 1311080320.

The previous prime is 1318703033. The next prime is 1318703143. The reversal of 1318703053 is 3503078131.

It is a happy number.

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 1229343844 + 89359209 = 35062^2 + 9453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1318703053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318703003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3811108 + ... + 3811453.

It is an arithmetic number, because the mean of its divisors is an integer number (331581447).

Almost surely, 2^1318703053 is an apocalyptic number.

It is an amenable number.

1318703053 is a deficient number, since it is larger than the sum of its proper divisors (7622735).

1318703053 is an equidigital number, since it uses as much as digits as its factorization.

1318703053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7622734.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1318703053 is about 36313.9512171287. The cubic root of 1318703053 is about 1096.6019249091.

The spelling of 1318703053 in words is "one billion, three hundred eighteen million, seven hundred three thousand, fifty-three".