1318056853 has 4 divisors (see below), whose sum is σ = 1360574848. Its totient is φ = 1275538860.

The previous prime is 1318056833. The next prime is 1318056863. The reversal of 1318056853 is 3586508131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3586508131 = 1523 ⋅2354897.

It is a cyclic number.

It is not a de Polignac number, because 1318056853 - 2¹⁷ = 1317925781 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 (1318056833) 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, 21258951 + ... + 21259012.

It is an arithmetic number, because the mean of its divisors is an integer number (340143712).

Almost surely, 2^1318056853 is an apocalyptic number.

It is an amenable number.

1318056853 is a deficient number, since it is larger than the sum of its proper divisors (42517995).

1318056853 is an equidigital number, since it uses as much as digits as its factorization.

1318056853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42517994.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1318056853 is about 36305.0527199727. The cubic root of 1318056853 is about 1096.4227741538.

The spelling of 1318056853 in words is "one billion, three hundred eighteen million, fifty-six thousand, eight hundred fifty-three".