1318270864 has 45 divisors (see below), whose sum is σ = 2653739283. Its totient is φ = 634373376.

The previous prime is 1318270859. The next prime is 1318270897. The reversal of 1318270864 is 4680728131.

The square root of 1318270864 is 36308.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 522579600 + 795691264 = 22860^2 + 28208^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4211572 + ... + 4211884.

Almost surely, 2^1318270864 is an apocalyptic number.

1318270864 is the 36308-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1318270864

1318270864 is an abundant number, since it is smaller than the sum of its proper divisors (1335468419).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1318270864 is an frugal number, since it uses more digits than its factorization.

1318270864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 344 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The cubic root of 1318270864 is about 1096.4821124733.

Adding to 1318270864 its reverse (4680728131), we get a palindrome (5998998995).

The spelling of 1318270864 in words is "one billion, three hundred eighteen million, two hundred seventy thousand, eight hundred sixty-four".